svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / numeric / BitXorFunction.java @ 43983
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package org.gvsig.expressionevaluator.impl.function.numeric; |
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import org.apache.commons.lang3.Range; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.expressionevaluator.spi.AbstractFunction; |
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public class BitXorFunction extends AbstractFunction { |
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public BitXorFunction() {
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super("Numeric", "BITXOR", Range.is(2), |
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"The BITXOR function treats its inputs and its output as vectors of bits; the output is the bitwise XOR of the inputs.\n" +
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"\n" +
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"The types of expr1 and expr2 are INTEGER or LONG, and the result is of type INTEGER or LONG.\n" +
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"If the types of expr1 or expr2 are not INTEGER or LONG a error is raised.\n",
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"BITXOR({{expr1}}, expr2)",
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new String[]{ |
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"expr1 - the fisrt argument",
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"expr2 - the second argument"
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}, |
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"Long"
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); |
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} |
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@Override
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public Object call(Interpreter interpreter, Object[] args) { |
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Object op1 = args[0]; |
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Object op2 = args[1]; |
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if( op1 instanceof Integer ) { |
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int value = ((Number) op1).intValue() ^ ((Number) op2).intValue(); |
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return value;
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} |
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if( op1 instanceof Number ) { |
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long value = ((Number) op1).longValue() ^ ((Number) op2).longValue(); |
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return value;
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} |
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throw new IllegalArgumentException("Types not allowed in '"+name()+"' function."); |
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} |
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} |