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 / typeconversion / ToDoubleFunction.java @ 44198
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package org.gvsig.expressionevaluator.impl.function.typeconversion; |
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import org.apache.commons.lang3.Range; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_TODOUBLE; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.expressionevaluator.spi.AbstractFunction; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dataTypes.DataTypes; |
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import org.gvsig.tools.dataTypes.DataTypesManager.Coercion; |
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public class ToDoubleFunction extends AbstractFunction { |
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public ToDoubleFunction() {
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super(GROUP_CONVERSION, FUNCTION_TODOUBLE, Range.is(1)); |
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this.addAlias("double"); |
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this.addAlias("toReal"); |
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this.addAlias("toNumber"); |
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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) throws Exception { |
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Coercion toStr = ToolsLocator.getDataTypesManager().getCoercion(DataTypes.DOUBLE); |
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Object value = toStr.coerce(this.getObject(args, 0)); |
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return value;
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} |
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} |