svn-gvsig-desktop / trunk / libraries / libExpressions / src / main / java / org / gvsig / operators / FieldCopy.java @ 23299
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package org.gvsig.operators; |
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import java.util.Date; |
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import org.apache.bsf.BSFException; |
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import org.apache.bsf.BSFManager; |
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import org.gvsig.baseclasses.AbstractOperator; |
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import org.gvsig.baseclasses.Index; |
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import org.gvsig.expresions.EvalOperatorsTask; |
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException; |
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import com.hardcode.gdbms.engine.values.BooleanValue; |
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import com.hardcode.gdbms.engine.values.DateValue; |
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import com.hardcode.gdbms.engine.values.NumericValue; |
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import com.hardcode.gdbms.engine.values.Value; |
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import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
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import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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/**
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* @author Vicente Caballero Navarro
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*/
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public class FieldCopy extends AbstractOperator{ |
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private FieldDescription fd;
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public FieldCopy() {
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} |
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public void setFieldDescription(FieldDescription fd) { |
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this.fd=fd;
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} |
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public String addText(String s) { |
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return s.concat(toString());
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} |
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public void eval(BSFManager interpreter) throws BSFException { |
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interpreter.declareBean(fd.getFieldAlias(),this,FieldCopy.class);
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interpreter.eval(EvalOperatorsTask.JYTHON,null,-1,-1,"java.lang.Object "+ fd.getFieldAlias()+ "(){return "+fd.getFieldAlias()+".getValue(indexRow,sds);};"); |
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} |
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public Object getValue(Index indexRow,SelectableDataSource sds) { |
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try {
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int index=sds.getFieldIndexByName(fd.getFieldName());
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Value value=(Value) sds.getFieldValue(indexRow.get(),index); |
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if (value instanceof NumericValue) { |
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double dv=((NumericValue)value).doubleValue();
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return new Double(dv); |
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}else if (value instanceof DateValue) { |
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Date date=((DateValue)value).getValue();
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return date;
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}else if (value instanceof BooleanValue){ |
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boolean b=((BooleanValue)value).getValue();
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return new Boolean(b); |
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}else {
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return value.toString();
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} |
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} catch (ReadDriverException e) {
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throw new RuntimeException(e.getMessage()); |
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} |
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} |
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public String toString() { |
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return "["+fd.getFieldAlias()+"]"; |
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} |
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public boolean isEnable() { |
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return true; |
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} |
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public String getDescription() { |
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// TODO Auto-generated method stub
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return null; |
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} |
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} |