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 / aggregate / CountFunction.java @ 44712
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package org.gvsig.expressionevaluator.impl.function.aggregate; |
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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 CountFunction extends AbstractFunction { |
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public CountFunction() {
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super(GROUP_AGGREGATE, "COUNT", Range.is(1)); |
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} |
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@Override
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public boolean allowConstantFolding() { |
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return true; |
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} |
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@Override
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public Object call(Interpreter interpreter, Object[] args) { |
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return 1; // Devolvemos algo para que funcione al preview. |
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} |
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} |