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Posted to commits@ibatis.apache.org by cb...@apache.org on 2008/08/10 08:00:22 UTC
svn commit: r684410 [6/16] - in /ibatis/trunk/java/ibatis-3: ./
ibatis-3-core/src/main/java/org/apache/ibatis/ognl/
ibatis-3-core/src/test/java/org/apache/ibatis/ognl/
ibatis-3-core/src/test/java/org/apache/ibatis/ognl/objects/
ibatis-3-core/src/test/j...
Added: ibatis/trunk/java/ibatis-3/ibatis-3-core/src/main/java/org/apache/ibatis/ognl/OgnlOps.java
URL: http://svn.apache.org/viewvc/ibatis/trunk/java/ibatis-3/ibatis-3-core/src/main/java/org/apache/ibatis/ognl/OgnlOps.java?rev=684410&view=auto
==============================================================================
--- ibatis/trunk/java/ibatis-3/ibatis-3-core/src/main/java/org/apache/ibatis/ognl/OgnlOps.java (added)
+++ ibatis/trunk/java/ibatis-3/ibatis-3-core/src/main/java/org/apache/ibatis/ognl/OgnlOps.java Sat Aug 9 23:00:18 2008
@@ -0,0 +1,730 @@
+//--------------------------------------------------------------------------
+// Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// Redistributions of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+// Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// Neither the name of the Drew Davidson nor the names of its contributors
+// may be used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+// DAMAGE.
+//--------------------------------------------------------------------------
+package org.apache.ibatis.ognl;
+
+import java.lang.reflect.Array;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.util.Enumeration;
+
+/**
+ * This is an abstract class with static methods that define the operations of OGNL.
+ * @author Luke Blanshard (blanshlu@netscape.net)
+ * @author Drew Davidson (drew@ognl.org)
+ */
+public abstract class OgnlOps implements NumericTypes
+{
+ /**
+ * Compares two objects for equality, even if it has to convert
+ * one of them to the other type. If both objects are numeric
+ * they are converted to the widest type and compared. If
+ * one is non-numeric and one is numeric the non-numeric is
+ * converted to double and compared to the double numeric
+ * value. If both are non-numeric and Comparable and the
+ * types are compatible (i.e. v1 is of the same or superclass
+ * of v2's type) they are compared with Comparable.compareTo().
+ * If both values are non-numeric and not Comparable or of
+ * incompatible classes this will throw and IllegalArgumentException.
+ *
+ * @param v1 First value to compare
+ * @param v2 second value to compare
+ *
+ * @return integer describing the comparison between the two objects.
+ * A negative number indicates that v1 < v2. Positive indicates
+ * that v1 > v2. Zero indicates v1 == v2.
+ *
+ * @throws IllegalArgumentException if the objects are both non-numeric
+ * yet of incompatible types or do not implement Comparable.
+ */
+ public static int compareWithConversion( Object v1, Object v2 )
+ {
+ return compareWithConversion(v1, v2, false);
+ }
+
+ /**
+ * Compares two objects for equality, even if it has to convert
+ * one of them to the other type. If both objects are numeric
+ * they are converted to the widest type and compared. If
+ * one is non-numeric and one is numeric the non-numeric is
+ * converted to double and compared to the double numeric
+ * value. If both are non-numeric and Comparable and the
+ * types are compatible (i.e. v1 is of the same or superclass
+ * of v2's type) they are compared with Comparable.compareTo().
+ * If both values are non-numeric and not Comparable or of
+ * incompatible classes this will throw and IllegalArgumentException.
+ *
+ * @param v1 First value to compare
+ * @param v2 second value to compare
+ *
+ * @return integer describing the comparison between the two objects.
+ * A negative number indicates that v1 < v2. Positive indicates
+ * that v1 > v2. Zero indicates v1 == v2.
+ *
+ * @throws IllegalArgumentException if the objects are both non-numeric
+ * yet of incompatible types or do not implement Comparable.
+ */
+ public static int compareWithConversion( Object v1, Object v2, boolean equals )
+ {
+ int result;
+
+ if (v1 == v2) {
+ result = 0;
+ } else {
+ int t1 = getNumericType(v1),
+ t2 = getNumericType(v2),
+ type = getNumericType(t1, t2, true);
+
+ switch (type) {
+ case BIGINT:
+ result = bigIntValue(v1).compareTo(bigIntValue(v2));
+ break;
+
+ case BIGDEC:
+ result = bigDecValue(v1).compareTo(bigDecValue(v2));
+ break;
+
+ case NONNUMERIC:
+ if ((t1 == NONNUMERIC) && (t2 == NONNUMERIC)) {
+ if ((v1 == null) || (v2 == null)) {
+ result = (v1 == v2) ? 0 : 1;
+ } else {
+ if (v1.getClass().isAssignableFrom(v2.getClass()) || v2.getClass().isAssignableFrom(v1.getClass())) {
+ if (v1 instanceof Comparable) {
+ result = ((Comparable)v1).compareTo(v2);
+ break;
+ } else {
+ if (equals) {
+ result = v1.equals(v2) ? 0 : 1;
+ break;
+ }
+ }
+ }
+ if (equals) {
+ // Equals comparison between non-numerics that are not of a common
+ // superclass return not equal
+ result = 1;
+ break;
+ } else {
+ throw new IllegalArgumentException("invalid comparison: " + v1.getClass().getName() + " and " + v2.getClass().getName());
+ }
+ }
+ }
+ // else fall through
+ case FLOAT:
+ case DOUBLE:
+ double dv1 = doubleValue(v1),
+ dv2 = doubleValue(v2);
+
+ return (dv1 == dv2) ? 0 : ((dv1 < dv2) ? -1 : 1);
+
+ default:
+ long lv1 = longValue(v1),
+ lv2 = longValue(v2);
+
+ return (lv1 == lv2) ? 0 : ((lv1 < lv2) ? -1 : 1);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Returns true if object1 is equal to object2 in either the
+ * sense that they are the same object or, if both are non-null
+ * if they are equal in the <CODE>equals()</CODE> sense.
+ *
+ * @param v1 First object to compare
+ * @param v2 Second object to compare
+ *
+ * @return true if v1 == v2
+ */
+ public static boolean isEqual(Object object1, Object object2)
+ {
+ boolean result = false;
+
+ if (object1 == object2) {
+ result = true;
+ } else {
+ if ((object1 != null) && (object2 != null)) {
+ if (object1.getClass().isArray() && object2.getClass().isArray() && (object2.getClass() == object1.getClass())) {
+ result = (Array.getLength(object1) == Array.getLength(object2));
+ if (result) {
+ for (int i = 0, icount = Array.getLength(object1); result && (i < icount); i++) {
+ result = isEqual(Array.get(object1, i), Array.get(object2, i));
+ }
+ }
+ } else {
+ if ((object1 != null) && (object2 != null)) {
+ // Check for converted equivalence first, then equals() equivalence
+ result = (compareWithConversion(object1, object2, true) == 0) || object1.equals(object2);
+ }
+ }
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Evaluates the given object as a boolean: if it is a Boolean object, it's easy; if
+ * it's a Number or a Character, returns true for non-zero objects; and otherwise
+ * returns true for non-null objects.
+ *
+ * @param value an object to interpret as a boolean
+ * @return the boolean value implied by the given object
+ */
+ public static boolean booleanValue( Object value )
+ {
+ if ( value == null )
+ return false;
+ Class c = value.getClass();
+ if ( c == Boolean.class )
+ return ((Boolean)value).booleanValue();
+// if ( c == String.class )
+// return ((String)value).length() > 0;
+ if ( c == Character.class )
+ return ((Character)value).charValue() != 0;
+ if ( value instanceof Number )
+ return ((Number)value).doubleValue() != 0;
+ return true; // non-null
+ }
+
+ /**
+ * Evaluates the given object as a long integer.
+ *
+ * @param value an object to interpret as a long integer
+ * @return the long integer value implied by the given object
+ * @throws NumberFormatException if the given object can't be understood as a long integer
+ */
+ public static long longValue( Object value ) throws NumberFormatException
+ {
+ if (value == null)
+ return 0L;
+ Class c = value.getClass();
+ if ( c.getSuperclass() == Number.class )
+ return ((Number)value).longValue();
+ if ( c == Boolean.class )
+ return ((Boolean)value).booleanValue()? 1 : 0;
+ if ( c == Character.class )
+ return ((Character)value).charValue();
+ return Long.parseLong( stringValue(value, true) );
+ }
+
+ /**
+ * Evaluates the given object as a double-precision floating-point number.
+ *
+ * @param value an object to interpret as a double
+ * @return the double value implied by the given object
+ * @throws NumberFormatException if the given object can't be understood as a double
+ */
+ public static double doubleValue( Object value ) throws NumberFormatException
+ {
+ if (value == null)
+ return 0.0;
+ Class c = value.getClass();
+ if ( c.getSuperclass() == Number.class )
+ return ((Number)value).doubleValue();
+ if ( c == Boolean.class )
+ return ((Boolean)value).booleanValue()? 1 : 0;
+ if ( c == Character.class )
+ return ((Character)value).charValue();
+ String s = stringValue(value, true);
+
+ return (s.length() == 0) ? 0.0 : Double.parseDouble( s );
+ /*
+ For 1.1 parseDouble() is not available
+ */
+ //return Double.valueOf( value.toString() ).doubleValue();
+ }
+
+ /**
+ * Evaluates the given object as a BigInteger.
+ *
+ * @param value an object to interpret as a BigInteger
+ * @return the BigInteger value implied by the given object
+ * @throws NumberFormatException if the given object can't be understood as a BigInteger
+ */
+ public static BigInteger bigIntValue( Object value ) throws NumberFormatException
+ {
+ if (value == null)
+ return BigInteger.valueOf(0L);
+ Class c = value.getClass();
+ if ( c == BigInteger.class )
+ return (BigInteger)value;
+ if ( c == BigDecimal.class )
+ return ((BigDecimal)value).toBigInteger();
+ if ( c.getSuperclass() == Number.class )
+ return BigInteger.valueOf( ((Number)value).longValue() );
+ if ( c == Boolean.class )
+ return BigInteger.valueOf( ((Boolean)value).booleanValue()? 1 : 0 );
+ if ( c == Character.class )
+ return BigInteger.valueOf( ((Character)value).charValue() );
+ return new BigInteger( stringValue(value, true) );
+ }
+
+ /**
+ * Evaluates the given object as a BigDecimal.
+ *
+ * @param value an object to interpret as a BigDecimal
+ * @return the BigDecimal value implied by the given object
+ * @throws NumberFormatException if the given object can't be understood as a BigDecimal
+ */
+ public static BigDecimal bigDecValue( Object value ) throws NumberFormatException
+ {
+ if (value == null)
+ return BigDecimal.valueOf(0L);
+ Class c = value.getClass();
+ if ( c == BigDecimal.class )
+ return (BigDecimal)value;
+ if ( c == BigInteger.class )
+ return new BigDecimal( (BigInteger)value );
+ if ( c.getSuperclass() == Number.class )
+ return new BigDecimal( ((Number)value).doubleValue() );
+ if ( c == Boolean.class )
+ return BigDecimal.valueOf( ((Boolean)value).booleanValue()? 1 : 0 );
+ if ( c == Character.class )
+ return BigDecimal.valueOf( ((Character)value).charValue() );
+ return new BigDecimal( stringValue(value, true) );
+ }
+
+ /**
+ * Evaluates the given object as a String and trims it if the trim flag is true.
+ *
+ * @param value an object to interpret as a String
+ * @return the String value implied by the given object as returned by the toString() method,
+ or "null" if the object is null.
+ */
+ public static String stringValue( Object value, boolean trim )
+ {
+ String result;
+
+ if (value == null) {
+ result = OgnlRuntime.NULL_STRING;
+ } else {
+ result = value.toString();
+ if (trim) {
+ result = result.trim();
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Evaluates the given object as a String.
+ *
+ * @param value an object to interpret as a String
+ * @return the String value implied by the given object as returned by the toString() method,
+ or "null" if the object is null.
+ */
+ public static String stringValue( Object value )
+ {
+ return stringValue(value, false);
+ }
+
+ /**
+ * Returns a constant from the NumericTypes interface that represents the numeric
+ * type of the given object.
+ *
+ * @param value an object that needs to be interpreted as a number
+ * @return the appropriate constant from the NumericTypes interface
+ */
+ public static int getNumericType( Object value )
+ {
+ int result = NONNUMERIC;
+
+ if (value != null) {
+ Class c = value.getClass();
+ if ( c == Integer.class ) return INT;
+ if ( c == Double.class ) return DOUBLE;
+ if ( c == Boolean.class ) return BOOL;
+ if ( c == Byte.class ) return BYTE;
+ if ( c == Character.class ) return CHAR;
+ if ( c == Short.class ) return SHORT;
+ if ( c == Long.class ) return LONG;
+ if ( c == Float.class ) return FLOAT;
+ if ( c == BigInteger.class ) return BIGINT;
+ if ( c == BigDecimal.class ) return BIGDEC;
+ }
+ return NONNUMERIC;
+ }
+
+ /**
+ * Returns the value converted numerically to the given class type
+ *
+ * This method also detects when arrays are being converted and
+ * converts the components of one array to the type of the other.
+ *
+ * @param value an object to be converted to the given type
+ * @param toType class type to be converted to
+ * @return converted value of the type given, or value if the value
+ * cannot be converted to the given type.
+ */
+ public static Object convertValue( Object value, Class toType)
+ {
+ Object result = null;
+
+ if (value != null) {
+ /* If array -> array then convert components of array individually */
+ if ( value.getClass().isArray() && toType.isArray() ) {
+ Class componentType = toType.getComponentType();
+
+ result = Array.newInstance(componentType, Array.getLength(value));
+ for (int i = 0, icount = Array.getLength(value); i < icount; i++) {
+ Array.set(result, i, convertValue(Array.get(value, i), componentType));
+ }
+ } else {
+ if ( ( toType == Integer.class ) || ( toType == Integer.TYPE ) ) result = new Integer((int)longValue(value));
+ if ( ( toType == Double.class ) || ( toType == Double.TYPE ) ) result = new Double(doubleValue(value));
+ if ( ( toType == Boolean.class ) || ( toType == Boolean.TYPE ) ) result = booleanValue(value) ? Boolean.TRUE : Boolean.FALSE;
+ if ( ( toType == Byte.class ) || ( toType == Byte.TYPE ) ) result = new Byte((byte)longValue(value));
+ if ( ( toType == Character.class ) || ( toType == Character.TYPE ) ) result = new Character((char)longValue(value));
+ if ( ( toType == Short.class ) || ( toType == Short.TYPE ) ) result = new Short((short)longValue(value));
+ if ( ( toType == Long.class ) || ( toType == Long.TYPE ) ) result = new Long(longValue(value));
+ if ( ( toType == Float.class ) || ( toType == Float.TYPE ) ) result = new Float(doubleValue(value));
+ if ( toType == BigInteger.class ) result = bigIntValue(value);
+ if ( toType == BigDecimal.class ) result = bigDecValue(value);
+ if ( toType == String.class ) result = stringValue(value);
+ }
+ } else {
+ if (toType.isPrimitive()) {
+ result = OgnlRuntime.getPrimitiveDefaultValue(toType);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Returns the constant from the NumericTypes interface that best expresses the type
+ * of a numeric operation on the two given objects.
+ *
+ * @param v1 one argument to a numeric operator
+ * @param v2 the other argument
+ * @return the appropriate constant from the NumericTypes interface
+ */
+ public static int getNumericType( Object v1, Object v2 )
+ {
+ return getNumericType( v1, v2, false );
+ }
+
+ /**
+ * Returns the constant from the NumericTypes interface that best expresses the type
+ * of an operation, which can be either numeric or not, on the two given types.
+ *
+ * @param t1 type of one argument to an operator
+ * @param t2 type of the other argument
+ * @param canBeNonNumeric whether the operator can be interpreted as non-numeric
+ * @return the appropriate constant from the NumericTypes interface
+ */
+ public static int getNumericType( int t1, int t2, boolean canBeNonNumeric )
+ {
+ if ( t1 == t2 )
+ return t1;
+
+ if ( canBeNonNumeric && (t1 == NONNUMERIC || t2 == NONNUMERIC || t1 == CHAR || t2 == CHAR) )
+ return NONNUMERIC;
+
+ if ( t1 == NONNUMERIC ) t1 = DOUBLE; // Try to interpret strings as doubles...
+ if ( t2 == NONNUMERIC ) t2 = DOUBLE; // Try to interpret strings as doubles...
+
+ if ( t1 >= MIN_REAL_TYPE )
+ {
+ if ( t2 >= MIN_REAL_TYPE )
+ return Math.max(t1,t2);
+ if ( t2 < INT )
+ return t1;
+ if ( t2 == BIGINT )
+ return BIGDEC;
+ return Math.max(DOUBLE,t1);
+ }
+ else if ( t2 >= MIN_REAL_TYPE )
+ {
+ if ( t1 < INT )
+ return t2;
+ if ( t1 == BIGINT )
+ return BIGDEC;
+ return Math.max(DOUBLE,t2);
+ }
+ else
+ return Math.max(t1,t2);
+ }
+
+ /**
+ * Returns the constant from the NumericTypes interface that best expresses the type
+ * of an operation, which can be either numeric or not, on the two given objects.
+ *
+ * @param v1 one argument to an operator
+ * @param v2 the other argument
+ * @param canBeNonNumeric whether the operator can be interpreted as non-numeric
+ * @return the appropriate constant from the NumericTypes interface
+ */
+ public static int getNumericType( Object v1, Object v2, boolean canBeNonNumeric )
+ {
+ return getNumericType(getNumericType(v1), getNumericType(v2), canBeNonNumeric);
+ }
+
+ /**
+ * Returns a new Number object of an appropriate type to hold the given integer
+ * value. The type of the returned object is consistent with the given type
+ * argument, which is a constant from the NumericTypes interface.
+ *
+ * @param type the nominal numeric type of the result, a constant from the NumericTypes interface
+ * @param value the integer value to convert to a Number object
+ * @return a Number object with the given value, of type implied by the type argument
+ */
+ public static Number newInteger( int type, long value )
+ {
+ switch ( type )
+ {
+ case BOOL:
+ case CHAR:
+ case INT:
+ return new Integer( (int)value );
+
+ case FLOAT:
+ if ( (long)(float)value == value ) {
+ return new Float( (float)value );
+ }
+ // else fall through:
+ case DOUBLE:
+ if ( (long)(double)value == value ) {
+ return new Double( (double)value );
+ }
+ // else fall through:
+ case LONG:
+ return new Long( value );
+
+ case BYTE:
+ return new Byte( (byte)value );
+
+ case SHORT:
+ return new Short( (short)value );
+
+ default:
+ return BigInteger.valueOf( value );
+ }
+ }
+
+ /**
+ * Returns a new Number object of an appropriate type to hold the given real value.
+ * The type of the returned object is always either Float or Double, and is only
+ * Float if the given type tag (a constant from the NumericTypes interface) is
+ * FLOAT.
+ *
+ * @param type the nominal numeric type of the result, a constant from the NumericTypes interface
+ * @param value the real value to convert to a Number object
+ * @return a Number object with the given value, of type implied by the type argument
+ */
+ public static Number newReal( int type, double value )
+ {
+ if ( type == FLOAT )
+ return new Float( (float)value );
+ return new Double( value );
+ }
+
+ public static Object binaryOr( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2);
+ if ( type == BIGINT || type == BIGDEC )
+ return bigIntValue(v1).or(bigIntValue(v2));
+ return newInteger( type, longValue(v1) | longValue(v2) );
+ }
+
+ public static Object binaryXor( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2);
+ if ( type == BIGINT || type == BIGDEC )
+ return bigIntValue(v1).xor(bigIntValue(v2));
+ return newInteger( type, longValue(v1) ^ longValue(v2) );
+ }
+
+ public static Object binaryAnd( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2);
+ if ( type == BIGINT || type == BIGDEC )
+ return bigIntValue(v1).and(bigIntValue(v2));
+ return newInteger( type, longValue(v1) & longValue(v2) );
+ }
+
+ public static boolean equal( Object v1, Object v2 )
+ {
+ if ( v1 == null )
+ return v2 == null;
+ if ( v1 == v2 || isEqual(v1, v2) )
+ return true;
+ if ( v1 instanceof Number && v2 instanceof Number )
+ return ((Number)v1).doubleValue() == ((Number)v2).doubleValue();
+ return false;
+ }
+
+ public static boolean less( Object v1, Object v2 )
+ {
+ return compareWithConversion(v1, v2) < 0;
+ }
+
+ public static boolean greater( Object v1, Object v2 )
+ {
+ return compareWithConversion(v1, v2) > 0;
+ }
+
+ public static boolean in( Object v1, Object v2 ) throws OgnlException
+ {
+ if ( v2 == null ) // A null collection is always treated as empty
+ return false;
+
+ ElementsAccessor elementsAccessor = OgnlRuntime.getElementsAccessor(OgnlRuntime.getTargetClass(v2));
+ for ( Enumeration e = elementsAccessor.getElements(v2); e.hasMoreElements(); ) {
+ Object o = e.nextElement();
+
+ if ( equal(v1, o) )
+ return true;
+ }
+ return false;
+ }
+
+ public static Object shiftLeft( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1);
+ if ( type == BIGINT || type == BIGDEC )
+ return bigIntValue(v1).shiftLeft( (int)longValue(v2) );
+ return newInteger( type, longValue(v1) << (int)longValue(v2) );
+ }
+
+ public static Object shiftRight( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1);
+ if ( type == BIGINT || type == BIGDEC )
+ return bigIntValue(v1).shiftRight( (int)longValue(v2) );
+ return newInteger( type, longValue(v1) >> (int)longValue(v2) );
+ }
+
+ public static Object unsignedShiftRight( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1);
+ if ( type == BIGINT || type == BIGDEC )
+ return bigIntValue(v1).shiftRight( (int)longValue(v2) );
+ if ( type <= INT )
+ return newInteger( INT, ((int)longValue(v1)) >>> (int)longValue(v2) );
+ return newInteger( type, longValue(v1) >>> (int)longValue(v2) );
+ }
+
+ public static Object add( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2,true);
+ switch ( type )
+ {
+ case BIGINT: return bigIntValue(v1).add(bigIntValue(v2));
+ case BIGDEC: return bigDecValue(v1).add(bigDecValue(v2));
+ case FLOAT:
+ case DOUBLE: return newReal( type, doubleValue(v1) + doubleValue(v2) );
+ case NONNUMERIC:
+ int t1 = getNumericType(v1),
+ t2 = getNumericType(v2);
+
+ if (((t1 != NONNUMERIC) && (v2 == null)) || ((t2 != NONNUMERIC) && (v1 == null))) {
+ throw new NullPointerException();
+ }
+ return stringValue(v1) + stringValue(v2);
+ default: return newInteger( type, longValue(v1) + longValue(v2) );
+ }
+ }
+
+ public static Object subtract( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2);
+ switch ( type )
+ {
+ case BIGINT: return bigIntValue(v1).subtract(bigIntValue(v2));
+ case BIGDEC: return bigDecValue(v1).subtract(bigDecValue(v2));
+ case FLOAT:
+ case DOUBLE: return newReal( type, doubleValue(v1) - doubleValue(v2) );
+ default: return newInteger( type, longValue(v1) - longValue(v2) );
+ }
+ }
+
+ public static Object multiply( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2);
+ switch ( type )
+ {
+ case BIGINT: return bigIntValue(v1).multiply(bigIntValue(v2));
+ case BIGDEC: return bigDecValue(v1).multiply(bigDecValue(v2));
+ case FLOAT:
+ case DOUBLE: return newReal( type, doubleValue(v1) * doubleValue(v2) );
+ default: return newInteger( type, longValue(v1) * longValue(v2) );
+ }
+ }
+
+ public static Object divide( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2);
+ switch ( type )
+ {
+ case BIGINT: return bigIntValue(v1).divide(bigIntValue(v2));
+ case BIGDEC: return bigDecValue(v1).divide( bigDecValue(v2), BigDecimal.ROUND_HALF_EVEN );
+ case FLOAT:
+ case DOUBLE: return newReal( type, doubleValue(v1) / doubleValue(v2) );
+ default: return newInteger( type, longValue(v1) / longValue(v2) );
+ }
+ }
+
+ public static Object remainder( Object v1, Object v2 )
+ {
+ int type = getNumericType(v1,v2);
+ switch ( type )
+ {
+ case BIGDEC:
+ case BIGINT: return bigIntValue(v1).remainder(bigIntValue(v2));
+ default: return newInteger( type, longValue(v1) % longValue(v2) );
+ }
+ }
+
+ public static Object negate( Object value )
+ {
+ int type = getNumericType(value);
+ switch ( type )
+ {
+ case BIGINT: return bigIntValue(value).negate();
+ case BIGDEC: return bigDecValue(value).negate();
+ case FLOAT:
+ case DOUBLE: return newReal( type, -doubleValue(value) );
+ default: return newInteger( type, -longValue(value) );
+ }
+ }
+
+ public static Object bitNegate( Object value )
+ {
+ int type = getNumericType(value);
+ switch ( type )
+ {
+ case BIGDEC:
+ case BIGINT: return bigIntValue(value).not();
+ default: return newInteger( type, ~longValue(value) );
+ }
+ }
+}