You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@kylin.apache.org by lu...@apache.org on 2015/07/13 12:36:49 UTC
[16/19] incubator-kylin git commit: Fix license issue with 0.7.2
release
Fix license issue with 0.7.2 release
Project: http://git-wip-us.apache.org/repos/asf/incubator-kylin/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-kylin/commit/4b0ee63c
Tree: http://git-wip-us.apache.org/repos/asf/incubator-kylin/tree/4b0ee63c
Diff: http://git-wip-us.apache.org/repos/asf/incubator-kylin/diff/4b0ee63c
Branch: refs/heads/0.7-staging
Commit: 4b0ee63cc776cccb1039e34961a97371df8b64a3
Parents: 575e0b8 b6eaf1a
Author: Luke Han <lu...@apache.org>
Authored: Mon Jul 13 17:04:04 2015 +0800
Committer: Luke Han <lu...@apache.org>
Committed: Mon Jul 13 17:04:04 2015 +0800
----------------------------------------------------------------------
README.md | 76 +---
atopcalcite/pom.xml | 2 +-
.../apache/calcite/runtime/SqlFunctions.java | 34 +-
.../calcite/sql2rel/SqlToRelConverter.java | 169 ++-----
bin/metastore.sh | 17 +
common/pom.xml | 2 +-
.../kylin/common/debug/BackdoorToggles.java | 17 +
.../kylin/common/persistence/RawResource.java | 18 +
.../org/apache/kylin/common/util/Bytes.java | 8 +-
.../java/org/apache/kylin/common/util/Pair.java | 9 +-
cube/pom.xml | 2 +-
.../org/apache/kylin/cube/CubeSegmentsTest.java | 4 +-
dictionary/pom.xml | 2 +-
docs/release_notes.md | 50 ++-
docs/website/README.md | 49 +-
docs/website/_config-prod.yml | 20 -
docs/website/_config.yml | 4 +-
.../2015-07-02-Events-and-Conferences.md | 25 ++
.../2015-07-06-How-to-making-a-release.md | 448 +++++++++++++++++++
.../blog/2015-01-25-introduce-data-model.md | 2 +-
.../2015-06-10-release-v0.7.1-incubating.md | 149 ++++++
docs/website/blog/index.html~ | 64 ---
docs/website/blog/index.md~ | 43 --
docs/website/docs/index.cn.md | 134 ++----
docs/website/docs/index.md | 133 ++----
docs/website/download/index.cn.md | 7 +
docs/website/download/index.md | 9 +
invertedindex/pom.xml | 2 +-
.../invertedindex/IIInstanceTest.java | 4 +-
.../invertedindex/invertedindex/LZFTest.java | 4 +-
jdbc/pom.xml | 2 +-
job/pom.xml | 2 +-
.../apache/kylin/job/tools/RowCounterCLI.java | 17 +
.../kylin/job/tools/HBaseRowDigestTest.java | 4 +-
metadata/pom.xml | 2 +-
.../measure/fixedlen/FixedHLLCodec.java | 4 +-
.../realization/IRealizationConstants.java | 4 +-
monitor/pom.xml | 5 +-
.../apache/kylin/monitor/ApiRequestParser.java | 4 +-
.../java/org/apache/kylin/monitor/Client.java | 4 +-
.../org/apache/kylin/monitor/ConfigUtils.java | 4 +-
.../org/apache/kylin/monitor/DebugClient.java | 4 +-
.../org/apache/kylin/monitor/FileUtils.java | 4 +-
.../apache/kylin/monitor/HiveJdbcClient.java | 4 +-
.../kylin/monitor/MonitorMetaManager.java | 4 +-
.../org/apache/kylin/monitor/QueryParser.java | 4 +-
.../org/apache/kylin/monitor/ParseLogTest.java | 4 +-
pom.xml | 172 ++++++-
query/pom.xml | 2 +-
server/pom.xml | 2 +-
.../kylin/rest/filter/KylinApiFilter.java | 17 +
.../org/apache/kylin/jdbc/JDBCDriverTest.java | 4 +-
src/main/config/assemblies/source-assembly.xml | 1 -
.../checkstyle/checkstyle-java-header.txt | 17 +
src/main/config/checkstyle/checkstyle.xml | 44 ++
src/main/config/checkstyle/suppressions.xml | 32 ++
storage/pom.xml | 2 +-
.../storage/hbase/coprocessor/AggrKey.java | 17 +
.../hbase/coprocessor/CoprocessorConstants.java | 3 -
.../endpoint/generated/IIProtos.java | 20 +-
.../coprocessor/observer/ObserverBehavior.java | 17 +
.../kylin/storage/filter/FilterPerfTest.java | 17 +
62 files changed, 1359 insertions(+), 591 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/incubator-kylin/blob/4b0ee63c/atopcalcite/src/main/java/org/apache/calcite/runtime/SqlFunctions.java
----------------------------------------------------------------------
diff --cc atopcalcite/src/main/java/org/apache/calcite/runtime/SqlFunctions.java
index 80b9fdd,0000000..c3e99ef
mode 100644,000000..100644
--- a/atopcalcite/src/main/java/org/apache/calcite/runtime/SqlFunctions.java
+++ b/atopcalcite/src/main/java/org/apache/calcite/runtime/SqlFunctions.java
@@@ -1,1378 -1,0 +1,1372 @@@
+/*
- * OVERRIDE POINT:
- * - divide(BigDecimal,BigDecimal), was `b0.divide(b1)`, now `b0.divide(b1, MathContext.DECIMAL64);`
- */
-
- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to you under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
++ * Licensed to the Apache Software Foundation (ASF) under one
++ * or more contributor license agreements. See the NOTICE file
++ * distributed with this work for additional information
++ * regarding copyright ownership. The ASF licenses this file
++ * to you under the Apache License, Version 2.0 (the
++ * "License"); you may not use this file except in compliance
++ * with the License. You may obtain a copy of the License at
++ *
++ * http://www.apache.org/licenses/LICENSE-2.0
++ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
- */
++*/
+package org.apache.calcite.runtime;
+
+import org.apache.calcite.DataContext;
+import org.apache.calcite.avatica.util.ByteString;
+import org.apache.calcite.avatica.util.DateTimeUtils;
+import org.apache.calcite.linq4j.Enumerable;
+import org.apache.calcite.linq4j.Linq4j;
+import org.apache.calcite.linq4j.function.Deterministic;
+import org.apache.calcite.linq4j.function.Function1;
+import org.apache.calcite.linq4j.function.NonDeterministic;
+import org.apache.calcite.linq4j.tree.Primitive;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.math.MathContext;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.text.DecimalFormat;
- import java.util.Date;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import java.util.TimeZone;
++import java.util.*;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.regex.Pattern;
+
+/**
++ * OVERRIDE POINT:
++ * - divide(BigDecimal,BigDecimal), was `b0.divide(b1)`, now `b0.divide(b1, MathContext.DECIMAL64);`
+ * Helper methods to implement SQL functions in generated code.
+ *
+ * <p>Not present: and, or, not (builtin operators are better, because they
+ * use lazy evaluation. Implementations do not check for null values; the
+ * calling code must do that.</p>
+ *
+ * <p>Many of the functions do not check for null values. This is intentional.
+ * If null arguments are possible, the code-generation framework checks for
+ * nulls before calling the functions.</p>
+ */
+@SuppressWarnings("UnnecessaryUnboxing")
+@Deterministic
+public class SqlFunctions {
+ private static final DecimalFormat DOUBLE_FORMAT =
+ new DecimalFormat("0.0E0");
+
+ private static final TimeZone LOCAL_TZ = TimeZone.getDefault();
+
+ private static final Function1<List<Object>, Enumerable<Object>>
+ LIST_AS_ENUMERABLE =
+ new Function1<List<Object>, Enumerable<Object>>() {
+ public Enumerable<Object> apply(List<Object> list) {
+ return Linq4j.asEnumerable(list);
+ }
+ };
+
+ /** Holds, for each thread, a map from sequence name to sequence current
+ * value.
+ *
+ * <p>This is a straw man of an implementation whose main goal is to prove
+ * that sequences can be parsed, validated and planned. A real application
+ * will want persistent values for sequences, shared among threads. */
+ private static final ThreadLocal<Map<String, AtomicLong>> THREAD_SEQUENCES =
+ new ThreadLocal<Map<String, AtomicLong>>() {
+ @Override protected Map<String, AtomicLong> initialValue() {
+ return new HashMap<String, AtomicLong>();
+ }
+ };
+
+ private SqlFunctions() {
+ }
+
+ /** SQL SUBSTRING(string FROM ... FOR ...) function. */
+ public static String substring(String s, int from, int for_) {
+ return s.substring(from - 1, Math.min(from - 1 + for_, s.length()));
+ }
+
+ /** SQL SUBSTRING(string FROM ...) function. */
+ public static String substring(String s, int from) {
+ return s.substring(from - 1);
+ }
+
+ /** SQL UPPER(string) function. */
+ public static String upper(String s) {
+ return s.toUpperCase();
+ }
+
+ /** SQL LOWER(string) function. */
+ public static String lower(String s) {
+ return s.toLowerCase();
+ }
+
+ /** SQL INITCAP(string) function. */
+ public static String initcap(String s) {
+ // Assumes Alpha as [A-Za-z0-9]
+ // white space is treated as everything else.
+ final int len = s.length();
+ boolean start = true;
+ final StringBuilder newS = new StringBuilder();
+
+ for (int i = 0; i < len; i++) {
+ char curCh = s.charAt(i);
+ final int c = (int) curCh;
+ if (start) { // curCh is whitespace or first character of word.
+ if (c > 47 && c < 58) { // 0-9
+ start = false;
+ } else if (c > 64 && c < 91) { // A-Z
+ start = false;
+ } else if (c > 96 && c < 123) { // a-z
+ start = false;
+ curCh = (char) (c - 32); // Uppercase this character
+ }
+ // else {} whitespace
+ } else { // Inside of a word or white space after end of word.
+ if (c > 47 && c < 58) { // 0-9
+ // noop
+ } else if (c > 64 && c < 91) { // A-Z
+ curCh = (char) (c + 32); // Lowercase this character
+ } else if (c > 96 && c < 123) { // a-z
+ // noop
+ } else { // whitespace
+ start = true;
+ }
+ }
+ newS.append(curCh);
+ } // for each character in s
+ return newS.toString();
+ }
+
+ /** SQL CHARACTER_LENGTH(string) function. */
+ public static int charLength(String s) {
+ return s.length();
+ }
+
+ /** SQL {@code string || string} operator. */
+ public static String concat(String s0, String s1) {
+ return s0 + s1;
+ }
+
+ /** SQL {@code binary || binary} operator. */
+ public static ByteString concat(ByteString s0, ByteString s1) {
+ return s0.concat(s1);
+ }
+
+ /** SQL {@code RTRIM} function applied to string. */
+ public static String rtrim(String s) {
+ return trim_(s, false, true, ' ');
+ }
+
+ /** SQL {@code LTRIM} function. */
+ public static String ltrim(String s) {
+ return trim_(s, true, false, ' ');
+ }
+
+ /** SQL {@code TRIM(... seek FROM s)} function. */
+ public static String trim(boolean leading, boolean trailing, String seek,
+ String s) {
+ return trim_(s, leading, trailing, seek.charAt(0));
+ }
+
+ /** SQL {@code TRIM} function. */
+ private static String trim_(String s, boolean left, boolean right, char c) {
+ int j = s.length();
+ if (right) {
+ for (;;) {
+ if (j == 0) {
+ return "";
+ }
+ if (s.charAt(j - 1) != c) {
+ break;
+ }
+ --j;
+ }
+ }
+ int i = 0;
+ if (left) {
+ for (;;) {
+ if (i == j) {
+ return "";
+ }
+ if (s.charAt(i) != c) {
+ break;
+ }
+ ++i;
+ }
+ }
+ return s.substring(i, j);
+ }
+
+ /** SQL {@code TRIM} function applied to binary string. */
+ public static ByteString trim(ByteString s) {
+ return trim_(s, true, true);
+ }
+
+ /** Helper for CAST. */
+ public static ByteString rtrim(ByteString s) {
+ return trim_(s, false, true);
+ }
+
+ /** SQL {@code TRIM} function applied to binary string. */
+ private static ByteString trim_(ByteString s, boolean left, boolean right) {
+ int j = s.length();
+ if (right) {
+ for (;;) {
+ if (j == 0) {
+ return ByteString.EMPTY;
+ }
+ if (s.byteAt(j - 1) != 0) {
+ break;
+ }
+ --j;
+ }
+ }
+ int i = 0;
+ if (left) {
+ for (;;) {
+ if (i == j) {
+ return ByteString.EMPTY;
+ }
+ if (s.byteAt(i) != 0) {
+ break;
+ }
+ ++i;
+ }
+ }
+ return s.substring(i, j);
+ }
+
+ /** SQL {@code OVERLAY} function. */
+ public static String overlay(String s, String r, int start) {
+ if (s == null || r == null) {
+ return null;
+ }
+ return s.substring(0, start - 1)
+ + r
+ + s.substring(start - 1 + r.length());
+ }
+
+ /** SQL {@code OVERLAY} function. */
+ public static String overlay(String s, String r, int start, int length) {
+ if (s == null || r == null) {
+ return null;
+ }
+ return s.substring(0, start - 1)
+ + r
+ + s.substring(start - 1 + length);
+ }
+
+ /** SQL {@code OVERLAY} function applied to binary strings. */
+ public static ByteString overlay(ByteString s, ByteString r, int start) {
+ if (s == null || r == null) {
+ return null;
+ }
+ return s.substring(0, start - 1)
+ .concat(r)
+ .concat(s.substring(start - 1 + r.length()));
+ }
+
+ /** SQL {@code OVERLAY} function applied to binary strings. */
+ public static ByteString overlay(ByteString s, ByteString r, int start,
+ int length) {
+ if (s == null || r == null) {
+ return null;
+ }
+ return s.substring(0, start - 1)
+ .concat(r)
+ .concat(s.substring(start - 1 + length));
+ }
+
+ /** SQL {@code LIKE} function. */
+ public static boolean like(String s, String pattern) {
+ final String regex = Like.sqlToRegexLike(pattern, null);
+ return Pattern.matches(regex, s);
+ }
+
+ /** SQL {@code LIKE} function with escape. */
+ public static boolean like(String s, String pattern, String escape) {
+ final String regex = Like.sqlToRegexLike(pattern, escape);
+ return Pattern.matches(regex, s);
+ }
+
+ /** SQL {@code SIMILAR} function. */
+ public static boolean similar(String s, String pattern) {
+ final String regex = Like.sqlToRegexSimilar(pattern, null);
+ return Pattern.matches(regex, s);
+ }
+
+ /** SQL {@code SIMILAR} function with escape. */
+ public static boolean similar(String s, String pattern, String escape) {
+ final String regex = Like.sqlToRegexSimilar(pattern, escape);
+ return Pattern.matches(regex, s);
+ }
+
+ // =
+
+ /** SQL = operator applied to Object values (including String; neither
+ * side may be null). */
+ public static boolean eq(Object b0, Object b1) {
+ return b0.equals(b1);
+ }
+
+ /** SQL = operator applied to BigDecimal values (neither may be null). */
+ public static boolean eq(BigDecimal b0, BigDecimal b1) {
+ return b0.stripTrailingZeros().equals(b1.stripTrailingZeros());
+ }
+
+ // <>
+
+ /** SQL <> operator applied to Object values (including String;
+ * neither side may be null). */
+ public static boolean ne(Object b0, Object b1) {
+ return !b0.equals(b1);
+ }
+
+ /** SQL <> operator applied to BigDecimal values. */
+ public static boolean ne(BigDecimal b0, BigDecimal b1) {
+ return b0.compareTo(b1) != 0;
+ }
+
+ // <
+
+ /** SQL < operator applied to boolean values. */
+ public static boolean lt(boolean b0, boolean b1) {
+ return compare(b0, b1) < 0;
+ }
+
+ /** SQL < operator applied to String values. */
+ public static boolean lt(String b0, String b1) {
+ return b0.compareTo(b1) < 0;
+ }
+
+ /** SQL < operator applied to ByteString values. */
+ public static boolean lt(ByteString b0, ByteString b1) {
+ return b0.compareTo(b1) < 0;
+ }
+
+ /** SQL < operator applied to BigDecimal values. */
+ public static boolean lt(BigDecimal b0, BigDecimal b1) {
+ return b0.compareTo(b1) < 0;
+ }
+
+ // <=
+
+ /** SQL ≤ operator applied to boolean values. */
+ public static boolean le(boolean b0, boolean b1) {
+ return compare(b0, b1) <= 0;
+ }
+
+ /** SQL ≤ operator applied to String values. */
+ public static boolean le(String b0, String b1) {
+ return b0.compareTo(b1) <= 0;
+ }
+
+ /** SQL ≤ operator applied to ByteString values. */
+ public static boolean le(ByteString b0, ByteString b1) {
+ return b0.compareTo(b1) <= 0;
+ }
+
+ /** SQL ≤ operator applied to BigDecimal values. */
+ public static boolean le(BigDecimal b0, BigDecimal b1) {
+ return b0.compareTo(b1) <= 0;
+ }
+
+ // >
+
+ /** SQL > operator applied to boolean values. */
+ public static boolean gt(boolean b0, boolean b1) {
+ return compare(b0, b1) > 0;
+ }
+
+ /** SQL > operator applied to String values. */
+ public static boolean gt(String b0, String b1) {
+ return b0.compareTo(b1) > 0;
+ }
+
+ /** SQL > operator applied to ByteString values. */
+ public static boolean gt(ByteString b0, ByteString b1) {
+ return b0.compareTo(b1) > 0;
+ }
+
+ /** SQL > operator applied to BigDecimal values. */
+ public static boolean gt(BigDecimal b0, BigDecimal b1) {
+ return b0.compareTo(b1) > 0;
+ }
+
+ // >=
+
+ /** SQL ≥ operator applied to boolean values. */
+ public static boolean ge(boolean b0, boolean b1) {
+ return compare(b0, b1) >= 0;
+ }
+
+ /** SQL ≥ operator applied to String values. */
+ public static boolean ge(String b0, String b1) {
+ return b0.compareTo(b1) >= 0;
+ }
+
+ /** SQL ≥ operator applied to ByteString values. */
+ public static boolean ge(ByteString b0, ByteString b1) {
+ return b0.compareTo(b1) >= 0;
+ }
+
+ /** SQL ≥ operator applied to BigDecimal values. */
+ public static boolean ge(BigDecimal b0, BigDecimal b1) {
+ return b0.compareTo(b1) >= 0;
+ }
+
+ // +
+
+ /** SQL <code>+</code> operator applied to int values. */
+ public static int plus(int b0, int b1) {
+ return b0 + b1;
+ }
+
+ /** SQL <code>+</code> operator applied to int values; left side may be
+ * null. */
+ public static Integer plus(Integer b0, int b1) {
+ return b0 == null ? null : (b0 + b1);
+ }
+
+ /** SQL <code>+</code> operator applied to int values; right side may be
+ * null. */
+ public static Integer plus(int b0, Integer b1) {
+ return b1 == null ? null : (b0 + b1);
+ }
+
+ /** SQL <code>+</code> operator applied to nullable int values. */
+ public static Integer plus(Integer b0, Integer b1) {
+ return (b0 == null || b1 == null) ? null : (b0 + b1);
+ }
+
+ /** SQL <code>+</code> operator applied to nullable long and int values. */
+ public static Long plus(Long b0, Integer b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() + b1.longValue());
+ }
+
+ /** SQL <code>+</code> operator applied to nullable int and long values. */
+ public static Long plus(Integer b0, Long b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() + b1.longValue());
+ }
+
+ /** SQL <code>+</code> operator applied to BigDecimal values. */
+ public static BigDecimal plus(BigDecimal b0, BigDecimal b1) {
+ return (b0 == null || b1 == null) ? null : b0.add(b1);
+ }
+
+ // -
+
+ /** SQL <code>-</code> operator applied to int values. */
+ public static int minus(int b0, int b1) {
+ return b0 - b1;
+ }
+
+ /** SQL <code>-</code> operator applied to int values; left side may be
+ * null. */
+ public static Integer minus(Integer b0, int b1) {
+ return b0 == null ? null : (b0 - b1);
+ }
+
+ /** SQL <code>-</code> operator applied to int values; right side may be
+ * null. */
+ public static Integer minus(int b0, Integer b1) {
+ return b1 == null ? null : (b0 - b1);
+ }
+
+ /** SQL <code>-</code> operator applied to nullable int values. */
+ public static Integer minus(Integer b0, Integer b1) {
+ return (b0 == null || b1 == null) ? null : (b0 - b1);
+ }
+
+ /** SQL <code>-</code> operator applied to nullable long and int values. */
+ public static Long minus(Long b0, Integer b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() - b1.longValue());
+ }
+
+ /** SQL <code>-</code> operator applied to nullable int and long values. */
+ public static Long minus(Integer b0, Long b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() - b1.longValue());
+ }
+
+ /** SQL <code>-</code> operator applied to BigDecimal values. */
+ public static BigDecimal minus(BigDecimal b0, BigDecimal b1) {
+ return (b0 == null || b1 == null) ? null : b0.subtract(b1);
+ }
+
+ // /
+
+ /** SQL <code>/</code> operator applied to int values. */
+ public static int divide(int b0, int b1) {
+ return b0 / b1;
+ }
+
+ /** SQL <code>/</code> operator applied to int values; left side may be
+ * null. */
+ public static Integer divide(Integer b0, int b1) {
+ return b0 == null ? null : (b0 / b1);
+ }
+
+ /** SQL <code>/</code> operator applied to int values; right side may be
+ * null. */
+ public static Integer divide(int b0, Integer b1) {
+ return b1 == null ? null : (b0 / b1);
+ }
+
+ /** SQL <code>/</code> operator applied to nullable int values. */
+ public static Integer divide(Integer b0, Integer b1) {
+ return (b0 == null || b1 == null) ? null : (b0 / b1);
+ }
+
+ /** SQL <code>/</code> operator applied to nullable long and int values. */
+ public static Long divide(Long b0, Integer b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() / b1.longValue());
+ }
+
+ /** SQL <code>/</code> operator applied to nullable int and long values. */
+ public static Long divide(Integer b0, Long b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() / b1.longValue());
+ }
+
+ /** SQL <code>/</code> operator applied to BigDecimal values. */
+ public static BigDecimal divide(BigDecimal b0, BigDecimal b1) {
+ return (b0 == null || b1 == null) ? null : b0.divide(b1, MathContext.DECIMAL64);
+ }
+
+ // *
+
+ /** SQL <code>*</code> operator applied to int values. */
+ public static int multiply(int b0, int b1) {
+ return b0 * b1;
+ }
+
+ /** SQL <code>*</code> operator applied to int values; left side may be
+ * null. */
+ public static Integer multiply(Integer b0, int b1) {
+ return b0 == null ? null : (b0 * b1);
+ }
+
+ /** SQL <code>*</code> operator applied to int values; right side may be
+ * null. */
+ public static Integer multiply(int b0, Integer b1) {
+ return b1 == null ? null : (b0 * b1);
+ }
+
+ /** SQL <code>*</code> operator applied to nullable int values. */
+ public static Integer multiply(Integer b0, Integer b1) {
+ return (b0 == null || b1 == null) ? null : (b0 * b1);
+ }
+
+ /** SQL <code>*</code> operator applied to nullable long and int values. */
+ public static Long multiply(Long b0, Integer b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() * b1.longValue());
+ }
+
+ /** SQL <code>*</code> operator applied to nullable int and long values. */
+ public static Long multiply(Integer b0, Long b1) {
+ return (b0 == null || b1 == null)
+ ? null
+ : (b0.longValue() * b1.longValue());
+ }
+
+ /** SQL <code>*</code> operator applied to BigDecimal values. */
+ public static BigDecimal multiply(BigDecimal b0, BigDecimal b1) {
+ return (b0 == null || b1 == null) ? null : b0.multiply(b1);
+ }
+
+ // EXP
+
+ /** SQL <code>EXP</code> operator applied to double values. */
+ public static double exp(double b0) {
+ return Math.exp(b0);
+ }
+
+ public static double exp(long b0) {
+ return Math.exp(b0);
+ }
+
+ // POWER
+
+ /** SQL <code>POWER</code> operator applied to double values. */
+ public static double power(double b0, double b1) {
+ return Math.pow(b0, b1);
+ }
+
+ public static double power(long b0, long b1) {
+ return Math.pow(b0, b1);
+ }
+
+ public static double power(long b0, BigDecimal b1) {
+ return Math.pow(b0, b1.doubleValue());
+ }
+
+ // LN
+
+ /** SQL {@code LN(number)} function applied to double values. */
+ public static double ln(double d) {
+ return Math.log(d);
+ }
+
+ /** SQL {@code LN(number)} function applied to long values. */
+ public static double ln(long b0) {
+ return Math.log(b0);
+ }
+
+ /** SQL {@code LN(number)} function applied to BigDecimal values. */
+ public static double ln(BigDecimal d) {
+ return Math.log(d.doubleValue());
+ }
+
+ // LOG10
+
+ /** SQL <code>LOG10(numeric)</code> operator applied to double values. */
+ public static double log10(double b0) {
+ return Math.log10(b0);
+ }
+
+ /** SQL {@code LOG10(number)} function applied to long values. */
+ public static double log10(long b0) {
+ return Math.log10(b0);
+ }
+
+ /** SQL {@code LOG10(number)} function applied to BigDecimal values. */
+ public static double log10(BigDecimal d) {
+ return Math.log10(d.doubleValue());
+ }
+
+ // MOD
+
+ /** SQL <code>MOD</code> operator applied to byte values. */
+ public static byte mod(byte b0, byte b1) {
+ return (byte) (b0 % b1);
+ }
+
+ /** SQL <code>MOD</code> operator applied to short values. */
+ public static short mod(short b0, short b1) {
+ return (short) (b0 % b1);
+ }
+
+ /** SQL <code>MOD</code> operator applied to int values. */
+ public static int mod(int b0, int b1) {
+ return b0 % b1;
+ }
+
+ /** SQL <code>MOD</code> operator applied to long values. */
+ public static long mod(long b0, long b1) {
+ return b0 % b1;
+ }
+
+ // temporary
+ public static BigDecimal mod(BigDecimal b0, int b1) {
+ return mod(b0, BigDecimal.valueOf(b1));
+ }
+
+ // temporary
+ public static int mod(int b0, BigDecimal b1) {
+ return mod(b0, b1.intValue());
+ }
+
+ public static BigDecimal mod(BigDecimal b0, BigDecimal b1) {
+ final BigDecimal[] bigDecimals = b0.divideAndRemainder(b1);
+ return bigDecimals[1];
+ }
+
+ // FLOOR
+
+ public static double floor(double b0) {
+ return Math.floor(b0);
+ }
+
+ public static float floor(float b0) {
+ return (float) Math.floor(b0);
+ }
+
+ public static BigDecimal floor(BigDecimal b0) {
+ return b0.setScale(0, BigDecimal.ROUND_FLOOR);
+ }
+
+ /** SQL <code>FLOOR</code> operator applied to byte values. */
+ public static byte floor(byte b0, byte b1) {
+ return (byte) floor((int) b0, (int) b1);
+ }
+
+ /** SQL <code>FLOOR</code> operator applied to short values. */
+ public static short floor(short b0, short b1) {
+ return (short) floor((int) b0, (int) b1);
+ }
+
+ /** SQL <code>FLOOR</code> operator applied to int values. */
+ public static int floor(int b0, int b1) {
+ int r = b0 % b1;
+ if (r < 0) {
+ r += b1;
+ }
+ return b0 - r;
+ }
+
+ /** SQL <code>FLOOR</code> operator applied to long values. */
+ public static long floor(long b0, long b1) {
+ long r = b0 % b1;
+ if (r < 0) {
+ r += b1;
+ }
+ return b0 - r;
+ }
+
+ // temporary
+ public static BigDecimal floor(BigDecimal b0, int b1) {
+ return floor(b0, BigDecimal.valueOf(b1));
+ }
+
+ // temporary
+ public static int floor(int b0, BigDecimal b1) {
+ return floor(b0, b1.intValue());
+ }
+
+ public static BigDecimal floor(BigDecimal b0, BigDecimal b1) {
+ final BigDecimal[] bigDecimals = b0.divideAndRemainder(b1);
+ BigDecimal r = bigDecimals[1];
+ if (r.signum() < 0) {
+ r = r.add(b1);
+ }
+ return b0.subtract(r);
+ }
+
+ // CEIL
+
+ public static double ceil(double b0) {
+ return Math.ceil(b0);
+ }
+
+ public static float ceil(float b0) {
+ return (float) Math.ceil(b0);
+ }
+
+ public static BigDecimal ceil(BigDecimal b0) {
+ return b0.setScale(0, BigDecimal.ROUND_CEILING);
+ }
+
+ /** SQL <code>CEIL</code> operator applied to byte values. */
+ public static byte ceil(byte b0, byte b1) {
+ return floor((byte) (b0 + b1 - 1), b1);
+ }
+
+ /** SQL <code>CEIL</code> operator applied to short values. */
+ public static short ceil(short b0, short b1) {
+ return floor((short) (b0 + b1 - 1), b1);
+ }
+
+ /** SQL <code>CEIL</code> operator applied to int values. */
+ public static int ceil(int b0, int b1) {
+ int r = b0 % b1;
+ if (r > 0) {
+ r -= b1;
+ }
+ return b0 - r;
+ }
+
+ /** SQL <code>CEIL</code> operator applied to long values. */
+ public static long ceil(long b0, long b1) {
+ return floor(b0 + b1 - 1, b1);
+ }
+
+ // temporary
+ public static BigDecimal ceil(BigDecimal b0, int b1) {
+ return ceil(b0, BigDecimal.valueOf(b1));
+ }
+
+ // temporary
+ public static int ceil(int b0, BigDecimal b1) {
+ return ceil(b0, b1.intValue());
+ }
+
+ public static BigDecimal ceil(BigDecimal b0, BigDecimal b1) {
+ final BigDecimal[] bigDecimals = b0.divideAndRemainder(b1);
+ BigDecimal r = bigDecimals[1];
+ if (r.signum() > 0) {
+ r = r.subtract(b1);
+ }
+ return b0.subtract(r);
+ }
+
+ // ABS
+
+ /** SQL <code>ABS</code> operator applied to byte values. */
+ public static byte abs(byte b0) {
+ return (byte) Math.abs(b0);
+ }
+
+ /** SQL <code>ABS</code> operator applied to short values. */
+ public static short abs(short b0) {
+ return (short) Math.abs(b0);
+ }
+
+ /** SQL <code>ABS</code> operator applied to int values. */
+ public static int abs(int b0) {
+ return Math.abs(b0);
+ }
+
+ /** SQL <code>ABS</code> operator applied to long values. */
+ public static long abs(long b0) {
+ return Math.abs(b0);
+ }
+
+ /** SQL <code>ABS</code> operator applied to float values. */
+ public static float abs(float b0) {
+ return Math.abs(b0);
+ }
+
+ /** SQL <code>ABS</code> operator applied to double values. */
+ public static double abs(double b0) {
+ return Math.abs(b0);
+ }
+
+ /** SQL <code>ABS</code> operator applied to BigDecimal values. */
+ public static BigDecimal abs(BigDecimal b0) {
+ return b0.abs();
+ }
+
+ // Helpers
+
+ /** Helper for implementing MIN. Somewhat similar to LEAST operator. */
+ public static <T extends Comparable<T>> T lesser(T b0, T b1) {
+ return b0 == null || b0.compareTo(b1) > 0 ? b1 : b0;
+ }
+
+ /** LEAST operator. */
+ public static <T extends Comparable<T>> T least(T b0, T b1) {
+ return b0 == null || b1 != null && b0.compareTo(b1) > 0 ? b1 : b0;
+ }
+
+ public static boolean greater(boolean b0, boolean b1) {
+ return b0 || b1;
+ }
+
+ public static boolean lesser(boolean b0, boolean b1) {
+ return b0 && b1;
+ }
+
+ public static byte greater(byte b0, byte b1) {
+ return b0 > b1 ? b0 : b1;
+ }
+
+ public static byte lesser(byte b0, byte b1) {
+ return b0 > b1 ? b1 : b0;
+ }
+
+ public static char greater(char b0, char b1) {
+ return b0 > b1 ? b0 : b1;
+ }
+
+ public static char lesser(char b0, char b1) {
+ return b0 > b1 ? b1 : b0;
+ }
+
+ public static short greater(short b0, short b1) {
+ return b0 > b1 ? b0 : b1;
+ }
+
+ public static short lesser(short b0, short b1) {
+ return b0 > b1 ? b1 : b0;
+ }
+
+ public static int greater(int b0, int b1) {
+ return b0 > b1 ? b0 : b1;
+ }
+
+ public static int lesser(int b0, int b1) {
+ return b0 > b1 ? b1 : b0;
+ }
+
+ public static long greater(long b0, long b1) {
+ return b0 > b1 ? b0 : b1;
+ }
+
+ public static long lesser(long b0, long b1) {
+ return b0 > b1 ? b1 : b0;
+ }
+
+ public static float greater(float b0, float b1) {
+ return b0 > b1 ? b0 : b1;
+ }
+
+ public static float lesser(float b0, float b1) {
+ return b0 > b1 ? b1 : b0;
+ }
+
+ public static double greater(double b0, double b1) {
+ return b0 > b1 ? b0 : b1;
+ }
+
+ public static double lesser(double b0, double b1) {
+ return b0 > b1 ? b1 : b0;
+ }
+
+ /** Helper for implementing MAX. Somewhat similar to GREATEST operator. */
+ public static <T extends Comparable<T>> T greater(T b0, T b1) {
+ return b0 == null || b0.compareTo(b1) < 0 ? b1 : b0;
+ }
+
+ /** GREATEST operator. */
+ public static <T extends Comparable<T>> T greatest(T b0, T b1) {
+ return b0 == null || b1 != null && b0.compareTo(b1) < 0 ? b1 : b0;
+ }
+
+ /** Boolean comparison. */
+ public static int compare(boolean x, boolean y) {
+ return x == y ? 0 : x ? 1 : -1;
+ }
+
+ /** CAST(FLOAT AS VARCHAR). */
+ public static String toString(float x) {
+ if (x == 0) {
+ return "0E0";
+ }
+ BigDecimal bigDecimal =
+ new BigDecimal(x, MathContext.DECIMAL32).stripTrailingZeros();
+ final String s = bigDecimal.toString();
+ return s.replaceAll("0*E", "E").replace("E+", "E");
+ }
+
+ /** CAST(DOUBLE AS VARCHAR). */
+ public static String toString(double x) {
+ if (x == 0) {
+ return "0E0";
+ }
+ BigDecimal bigDecimal =
+ new BigDecimal(x, MathContext.DECIMAL64).stripTrailingZeros();
+ final String s = bigDecimal.toString();
+ return s.replaceAll("0*E", "E").replace("E+", "E");
+ }
+
+ /** CAST(DECIMAL AS VARCHAR). */
+ public static String toString(BigDecimal x) {
+ final String s = x.toString();
+ if (s.startsWith("0")) {
+ // we want ".1" not "0.1"
+ return s.substring(1);
+ } else if (s.startsWith("-0")) {
+ // we want "-.1" not "-0.1"
+ return "-" + s.substring(2);
+ } else {
+ return s;
+ }
+ }
+
+ /** CAST(BOOLEAN AS VARCHAR). */
+ public static String toString(boolean x) {
+ // Boolean.toString returns lower case -- no good.
+ return x ? "TRUE" : "FALSE";
+ }
+
+ @NonDeterministic
+ private static Object cannotConvert(Object o, Class toType) {
+ throw new RuntimeException("Cannot convert " + o + " to " + toType);
+ }
+
+ /** CAST(VARCHAR AS BOOLEAN). */
+ public static boolean toBoolean(String s) {
+ s = trim_(s, true, true, ' ');
+ if (s.equalsIgnoreCase("TRUE")) {
+ return true;
+ } else if (s.equalsIgnoreCase("FALSE")) {
+ return false;
+ } else {
+ throw new RuntimeException("Invalid character for cast");
+ }
+ }
+
+ public static boolean toBoolean(Number number) {
+ return !number.equals(0);
+ }
+
+ public static boolean toBoolean(Object o) {
+ return o instanceof Boolean ? (Boolean) o
+ : o instanceof Number ? toBoolean((Number) o)
+ : o instanceof String ? toBoolean((String) o)
+ : (Boolean) cannotConvert(o, boolean.class);
+ }
+
+ // Don't need parseByte etc. - Byte.parseByte is sufficient.
+
+ public static byte toByte(Object o) {
+ return o instanceof Byte ? (Byte) o
+ : o instanceof Number ? toByte((Number) o)
+ : Byte.parseByte(o.toString());
+ }
+
+ public static byte toByte(Number number) {
+ return number.byteValue();
+ }
+
+ public static char toChar(String s) {
+ return s.charAt(0);
+ }
+
+ public static Character toCharBoxed(String s) {
+ return s.charAt(0);
+ }
+
+ public static short toShort(String s) {
+ return Short.parseShort(s.trim());
+ }
+
+ public static short toShort(Number number) {
+ return number.shortValue();
+ }
+
+ public static short toShort(Object o) {
+ return o instanceof Short ? (Short) o
+ : o instanceof Number ? toShort((Number) o)
+ : o instanceof String ? toShort((String) o)
+ : (Short) cannotConvert(o, short.class);
+ }
+
+ public static int toInt(java.util.Date v) {
+ return toInt(v, LOCAL_TZ);
+ }
+
+ public static int toInt(java.util.Date v, TimeZone timeZone) {
+ return (int) (toLong(v, timeZone) / DateTimeUtils.MILLIS_PER_DAY);
+ }
+
+ public static Integer toIntOptional(java.util.Date v) {
+ return v == null ? null : toInt(v);
+ }
+
+ public static Integer toIntOptional(java.util.Date v, TimeZone timeZone) {
+ return v == null
+ ? null
+ : toInt(v, timeZone);
+ }
+
+ public static long toLong(Date v) {
+ return toLong(v, LOCAL_TZ);
+ }
+
+ public static int toInt(java.sql.Time v) {
+ return (int) (toLong(v) % DateTimeUtils.MILLIS_PER_DAY);
+ }
+
+ public static Integer toIntOptional(java.sql.Time v) {
+ return v == null ? null : toInt(v);
+ }
+
+ public static int toInt(String s) {
+ return Integer.parseInt(s.trim());
+ }
+
+ public static int toInt(Number number) {
+ return number.intValue();
+ }
+
+ public static int toInt(Object o) {
+ return o instanceof Integer ? (Integer) o
+ : o instanceof Number ? toInt((Number) o)
+ : o instanceof String ? toInt((String) o)
+ : (Integer) cannotConvert(o, int.class);
+ }
+
+ public static long toLong(Timestamp v) {
+ return toLong(v, LOCAL_TZ);
+ }
+
+ // mainly intended for java.sql.Timestamp but works for other dates also
+ public static long toLong(java.util.Date v, TimeZone timeZone) {
+ final long time = v.getTime();
+ return time + timeZone.getOffset(time);
+ }
+
+ // mainly intended for java.sql.Timestamp but works for other dates also
+ public static Long toLongOptional(java.util.Date v) {
+ return v == null ? null : toLong(v, LOCAL_TZ);
+ }
+
+ public static Long toLongOptional(Timestamp v, TimeZone timeZone) {
+ if (v == null) {
+ return null;
+ }
+ return toLong(v, LOCAL_TZ);
+ }
+
+ public static long toLong(String s) {
+ if (s.startsWith("199") && s.contains(":")) {
+ return Timestamp.valueOf(s).getTime();
+ }
+ return Long.parseLong(s.trim());
+ }
+
+ public static long toLong(Number number) {
+ return number.longValue();
+ }
+
+ public static long toLong(Object o) {
+ return o instanceof Long ? (Long) o
+ : o instanceof Number ? toLong((Number) o)
+ : o instanceof String ? toLong((String) o)
+ : (Long) cannotConvert(o, long.class);
+ }
+
+ public static float toFloat(String s) {
+ return Float.parseFloat(s.trim());
+ }
+
+ public static float toFloat(Number number) {
+ return number.floatValue();
+ }
+
+ public static float toFloat(Object o) {
+ return o instanceof Float ? (Float) o
+ : o instanceof Number ? toFloat((Number) o)
+ : o instanceof String ? toFloat((String) o)
+ : (Float) cannotConvert(o, float.class);
+ }
+
+ public static double toDouble(String s) {
+ return Double.parseDouble(s.trim());
+ }
+
+ public static double toDouble(Number number) {
+ return number.doubleValue();
+ }
+
+ public static double toDouble(Object o) {
+ return o instanceof Double ? (Double) o
+ : o instanceof Number ? toDouble((Number) o)
+ : o instanceof String ? toDouble((String) o)
+ : (Double) cannotConvert(o, double.class);
+ }
+
+ public static BigDecimal toBigDecimal(String s) {
+ return new BigDecimal(s.trim());
+ }
+
+ public static BigDecimal toBigDecimal(Number number) {
+ // There are some values of "long" that cannot be represented as "double".
+ // Not so "int". If it isn't a long, go straight to double.
+ return number instanceof BigDecimal ? (BigDecimal) number
+ : number instanceof BigInteger ? new BigDecimal((BigInteger) number)
+ : number instanceof Long ? new BigDecimal(number.longValue())
+ : new BigDecimal(number.doubleValue());
+ }
+
+ public static BigDecimal toBigDecimal(Object o) {
+ return o instanceof Number ? toBigDecimal((Number) o)
+ : toBigDecimal(o.toString());
+ }
+
+ // Don't need shortValueOf etc. - Short.valueOf is sufficient.
+
+ /** Helper for CAST(... AS VARCHAR(maxLength)). */
+ public static String truncate(String s, int maxLength) {
+ return s == null ? null
+ : s.length() > maxLength ? s.substring(0, maxLength)
+ : s;
+ }
+
+ /** Helper for CAST(... AS VARBINARY(maxLength)). */
+ public static ByteString truncate(ByteString s, int maxLength) {
+ return s == null ? null
+ : s.length() > maxLength ? s.substring(0, maxLength)
+ : s;
+ }
+
+ /** SQL {@code POSITION(seek IN string)} function. */
+ public static int position(String seek, String s) {
+ return s.indexOf(seek) + 1;
+ }
+
+ /** SQL {@code POSITION(seek IN string)} function. */
+ public static int position(ByteString seek, ByteString s) {
+ return s.indexOf(seek) + 1;
+ }
+
+ /** Helper for rounding. Truncate(12345, 1000) returns 12000. */
+ public static long round(long v, long x) {
+ return truncate(v + x / 2, x);
+ }
+
+ /** Helper for rounding. Truncate(12345, 1000) returns 12000. */
+ public static long truncate(long v, long x) {
+ long remainder = v % x;
+ if (remainder < 0) {
+ remainder += x;
+ }
+ return v - remainder;
+ }
+
+ /** Helper for rounding. Truncate(12345, 1000) returns 12000. */
+ public static int round(int v, int x) {
+ return truncate(v + x / 2, x);
+ }
+
+ /** Helper for rounding. Truncate(12345, 1000) returns 12000. */
+ public static int truncate(int v, int x) {
+ int remainder = v % x;
+ if (remainder < 0) {
+ remainder += x;
+ }
+ return v - remainder;
+ }
+
+ /** SQL {@code CURRENT_TIMESTAMP} function. */
+ @NonDeterministic
+ public static long currentTimestamp(DataContext root) {
+ // Cast required for JDK 1.6.
+ return (Long) DataContext.Variable.CURRENT_TIMESTAMP.get(root);
+ }
+
+ /** SQL {@code CURRENT_TIME} function. */
+ @NonDeterministic
+ public static int currentTime(DataContext root) {
+ int time = (int) (currentTimestamp(root) % DateTimeUtils.MILLIS_PER_DAY);
+ if (time < 0) {
+ time += DateTimeUtils.MILLIS_PER_DAY;
+ }
+ return time;
+ }
+
+ /** SQL {@code CURRENT_DATE} function. */
+ @NonDeterministic
+ public static int currentDate(DataContext root) {
+ final long timestamp = currentTimestamp(root);
+ int date = (int) (timestamp / DateTimeUtils.MILLIS_PER_DAY);
+ final int time = (int) (timestamp % DateTimeUtils.MILLIS_PER_DAY);
+ if (time < 0) {
+ --date;
+ }
+ return date;
+ }
+
+ /** SQL {@code LOCAL_TIMESTAMP} function. */
+ @NonDeterministic
+ public static long localTimestamp(DataContext root) {
+ // Cast required for JDK 1.6.
+ return (Long) DataContext.Variable.LOCAL_TIMESTAMP.get(root);
+ }
+
+ /** SQL {@code LOCAL_TIME} function. */
+ @NonDeterministic
+ public static int localTime(DataContext root) {
+ return (int) (localTimestamp(root) % DateTimeUtils.MILLIS_PER_DAY);
+ }
+
+ /** Helper for "array element reference". Caller has already ensured that
+ * array and index are not null. Index is 1-based, per SQL. */
+ public static Object arrayItem(List list, int item) {
+ if (item < 1 || item > list.size()) {
+ return null;
+ }
+ return list.get(item - 1);
+ }
+
+ /** Helper for "map element reference". Caller has already ensured that
+ * array and index are not null. Index is 1-based, per SQL. */
+ public static Object mapItem(Map map, Object item) {
+ return map.get(item);
+ }
+
+ /** Implements the {@code [ ... ]} operator on an object whose type is not
+ * known until runtime.
+ */
+ public static Object item(Object object, Object index) {
+ if (object instanceof Map) {
+ return ((Map) object).get(index);
+ }
+ if (object instanceof List && index instanceof Number) {
+ List list = (List) object;
+ return list.get(((Number) index).intValue());
+ }
+ return null;
+ }
+
+ /** NULL → FALSE, FALSE → FALSE, TRUE → TRUE. */
+ public static boolean isTrue(Boolean b) {
+ return b != null && b;
+ }
+
+ /** NULL → TRUE, FALSE → FALSE, TRUE → TRUE. */
+ public static boolean isNotFalse(Boolean b) {
+ return b == null || b;
+ }
+
+ /** NULL → NULL, FALSE → TRUE, TRUE → FALSE. */
+ public static Boolean not(Boolean b) {
+ return (b == null) ? null : !b;
+ }
+
+ /** Converts a JDBC array to a list. */
+ public static List arrayToList(final java.sql.Array a) {
+ if (a == null) {
+ return null;
+ }
+ try {
+ return Primitive.asList(a.getArray());
+ } catch (SQLException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ /** Support the {@code CURRENT VALUE OF sequence} operator. */
+ @NonDeterministic
+ public static long sequenceCurrentValue(String key) {
+ return getAtomicLong(key).get();
+ }
+
+ /** Support the {@code NEXT VALUE OF sequence} operator. */
+ @NonDeterministic
+ public static long sequenceNextValue(String key) {
+ return getAtomicLong(key).incrementAndGet();
+ }
+
+ private static AtomicLong getAtomicLong(String key) {
+ final Map<String, AtomicLong> map = THREAD_SEQUENCES.get();
+ AtomicLong atomic = map.get(key);
+ if (atomic == null) {
+ atomic = new AtomicLong();
+ map.put(key, atomic);
+ }
+ return atomic;
+ }
+
+ /** Support the SLICE function. */
+ public static List slice(List list) {
+ return list;
+ }
+
+ /** Support the ELEMENT function. */
+ public static Object element(List list) {
+ switch (list.size()) {
+ case 0:
+ return null;
+ case 1:
+ return list.get(0);
+ default:
+ throw new RuntimeException("more than one value");
+ }
+ }
+
+ /** Returns a lambda that converts a list to an enumerable. */
+ public static <E> Function1<List<E>, Enumerable<E>> listToEnumerable() {
+ //noinspection unchecked
+ return (Function1<List<E>, Enumerable<E>>) (Function1) LIST_AS_ENUMERABLE;
+ }
+
+}
+
+// End SqlFunctions.java