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 / programming / $HostExpressionFunction.java @ 46082
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1 | 44138 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.programming; |
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2 | 43512 | jjdelcerro | |
3 | import org.apache.commons.lang3.Range; |
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4 | 44138 | jjdelcerro | import org.gvsig.expressionevaluator.Function; |
5 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
6 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
7 | 46082 | jjdelcerro | import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_$HOSTEXPRESSION; |
8 | 43512 | jjdelcerro | |
9 | 46082 | jjdelcerro | public class $HostExpressionFunction extends AbstractFunction { |
10 | 43512 | jjdelcerro | |
11 | 46082 | jjdelcerro | // https://docs.oracle.com/cd/A87860_01/doc/java.817/a83723/blangfe3.htm
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12 | // Esta funcion esta pensada para dar soporte a la funcionadad de "Host expressions" de SQLJ
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13 | |||
14 | public $HostExpressionFunction() { |
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15 | 46053 | omartinez | super(Function.GROUP_PROGRAMMING,
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16 | 46082 | jjdelcerro | FUNCTION_$HOSTEXPRESSION,
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17 | Range.is(2),
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18 | 46081 | jjdelcerro | "Returns the value passed as a parameter.\n",
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19 | 46082 | jjdelcerro | FUNCTION_$HOSTEXPRESSION+"({{expression}},mode_specifier)", |
20 | 44138 | jjdelcerro | null,
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21 | 44269 | omartinez | "Object",
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22 | 44207 | jjdelcerro | false
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23 | 43512 | jjdelcerro | ); |
24 | } |
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25 | 44138 | jjdelcerro | |
26 | 43512 | jjdelcerro | @Override
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27 | 44009 | jjdelcerro | public boolean allowConstantFolding() { |
28 | 44138 | jjdelcerro | return false; |
29 | } |
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30 | 44009 | jjdelcerro | |
31 | @Override
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32 | 44138 | jjdelcerro | public Object call(Interpreter interpreter, final Object[] args) throws Exception { |
33 | 46010 | jjdelcerro | return args[0]; |
34 | 43512 | jjdelcerro | } |
35 | 44138 | jjdelcerro | |
36 | 43512 | jjdelcerro | |
37 | } |