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 / BitAndFunction.java @ 43983
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1 | 43512 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.numeric; |
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2 | |||
3 | import org.apache.commons.lang3.Range; |
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4 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
5 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
6 | |||
7 | public class BitAndFunction extends AbstractFunction { |
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8 | |||
9 | public BitAndFunction() {
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10 | super("Numeric", "BITAND", Range.is(2), |
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11 | 43983 | jjdelcerro | "The BITAND function treats its inputs and its output as vectors of bits; the output is the bitwise AND of the inputs.\n" +
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12 | "\n" +
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13 | "The types of expr1 and expr2 are INTEGER or LONG, and the result is of type INTEGER or LONG.\n" +
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14 | "If the types of expr1 or expr2 are not INTEGER or LONG a error is raised.\n",
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15 | "BITAND({{expr1}}, expr2)",
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16 | new String[]{ |
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17 | "expr1 - the fisrt argument",
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18 | "expr2 - the second argument"
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19 | }, |
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20 | "Long"
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21 | 43512 | jjdelcerro | ); |
22 | } |
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23 | |||
24 | @Override
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25 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) { |
26 | 43512 | jjdelcerro | Object op1 = args[0]; |
27 | Object op2 = args[1]; |
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28 | |||
29 | if( op1 instanceof Integer ) { |
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30 | int value = ((Number) op1).intValue() & ((Number) op2).intValue(); |
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31 | return value;
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32 | } |
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33 | if( op1 instanceof Number ) { |
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34 | long value = ((Number) op1).longValue() & ((Number) op2).longValue(); |
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35 | return value;
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36 | } |
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37 | |||
38 | throw new IllegalArgumentException("Types not allowed in '"+name()+"' function."); |
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39 | } |
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40 | |||
41 | |||
42 | } |