[sling-org-apache-sling-nosql-generic] 11/23: SLING-4381 introduce AbstractNoSqlAdapter

[ro...@apache.org]

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rombert pushed a commit to annotated tag org.apache.sling.nosql.generic-1.0.0
in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-nosql-generic.git

commit 7233de3c8cd4ec56a18a4734f35a46fc5752cd2b
Author: Stefan Seifert <ss...@apache.org>
AuthorDate: Fri May 22 08:55:34 2015 +0000

    SLING-4381 introduce AbstractNoSqlAdapter
    
    git-svn-id: https://svn.apache.org/repos/asf/sling/trunk/contrib/nosql/generic@1681048 13f79535-47bb-0310-9956-ffa450edef68
---
 .../generic/adapter/AbstractNoSqlAdapter.java      | 43 ++++++++++++++++++++++
 .../sling/nosql/generic/adapter/NoSqlAdapter.java  |  1 +
 2 files changed, 44 insertions(+)

diff --git a/src/main/java/org/apache/sling/nosql/generic/adapter/AbstractNoSqlAdapter.java b/src/main/java/org/apache/sling/nosql/generic/adapter/AbstractNoSqlAdapter.java
new file mode 100644
index 0000000..38eff2b
--- /dev/null
+++ b/src/main/java/org/apache/sling/nosql/generic/adapter/AbstractNoSqlAdapter.java
@@ -0,0 +1,43 @@
+/*
+ * 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.sling.nosql.generic.adapter;
+
+import java.util.Iterator;
+
+import aQute.bnd.annotation.ConsumerType;
+
+/**
+ * Default implementation of {@link NoSqlAdapter}.
+ */
+@ConsumerType
+public abstract class AbstractNoSqlAdapter implements NoSqlAdapter {
+
+    @Override
+    public boolean validPath(String path) {
+        // by default all paths are accepted
+        return true;
+    }
+
+    @Override
+    public Iterator<NoSqlData> query(String query, String language) {
+        // not supported unless it is overwritten explicitly
+        return null;
+    }
+    
+}
diff --git a/src/main/java/org/apache/sling/nosql/generic/adapter/NoSqlAdapter.java b/src/main/java/org/apache/sling/nosql/generic/adapter/NoSqlAdapter.java
index 0359796..ab3d823 100644
--- a/src/main/java/org/apache/sling/nosql/generic/adapter/NoSqlAdapter.java
+++ b/src/main/java/org/apache/sling/nosql/generic/adapter/NoSqlAdapter.java
@@ -24,6 +24,7 @@ import aQute.bnd.annotation.ConsumerType;
 
 /**
  * Adapter for NoSQL databases to be hooked into the Generic NoSQL resource provider.
+ * All implementors should should extend {@link AbstractNoSqlAdapter} to be compatible for future extensions.
  */
 @ConsumerType
 public interface NoSqlAdapter {

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