| //-------------------------------------------------------------------------- | |
| // 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 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 ) | |
| { | |
| 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 instanceof Comparable) && v1.getClass().isAssignableFrom(v2.getClass())) { | |
| result = ((Comparable)v1).compareTo(v2); | |
| 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 object1 First object to compare | |
| * @param object2 Second object to compare | |
| * | |
| * @return true if objec1 == object2 | |
| */ | |
| public static boolean isEqual(Object object1, Object object2) | |
| { | |
| boolean result = false; | |
| if (object1 == object2) { | |
| result = true; | |
| } else { | |
| if ((object1 != null) && object1.getClass().isArray()) { | |
| if ((object2 != null) && 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 { | |
| // Check for converted equivalence first, then equals() equivalence | |
| result = (object1 != null) && (object2 != null) && | |
| ((compareWithConversion(object1, object2) == 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() ); | |
| // Fix BigDecimal conversion error | |
| return new BigDecimal( value.toString() ); | |
| 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) ); | |
| } | |
| } | |
| } |