svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.h2 / src / main / java / org / gvsig / fmap / dal / store / h2 / expressionbuilderformatter / IsNotNull.java @ 44198
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package org.gvsig.fmap.dal.store.h2.expressionbuilderformatter; |
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import java.text.MessageFormat; |
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import java.util.List; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.Code.Constant; |
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import org.gvsig.expressionevaluator.ExpressionBuilder.Function; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.OPERATOR_IS; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.OPERATOR_NOT; |
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import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
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import org.gvsig.expressionevaluator.Formatter; |
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import org.gvsig.fmap.dal.SQLBuilder; |
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/**
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*
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* @author jjdelcerro
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*/
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class IsNotNull implements Formatter<Value> { |
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private final Formatter<Value> formatter; |
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private final SQLBuilder builder; |
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public IsNotNull(SQLBuilder builder, Formatter<Value> formatter) { |
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this.builder = builder;
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this.formatter = formatter;
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} |
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@Override
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public boolean canApply(Value value_not) { |
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if (value_not instanceof Function) { |
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// NOT( IS( p1, NULL) )
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if( StringUtils.equalsIgnoreCase(OPERATOR_NOT, ((Function) value_not).name()) ) {
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List<Value> parameters = ((Function) value_not).parameters();
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Value value_is = parameters.get(0);
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if( value_is instanceof Function && StringUtils.equalsIgnoreCase(OPERATOR_IS, ((Function)value_is).name()) ) { |
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List<Value> parameters_is = ((Function)value_is).parameters();
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Value is_p2 = parameters_is.get(1);
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if( is_p2 instanceof Constant && ((Constant)is_p2).value()==null ) { |
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return true; |
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} |
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} |
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} |
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} |
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return false; |
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} |
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@Override
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public String format(Value value_not) { |
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// NOT( IS( p1, NULL) )
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List<Value> parameters = ((Function) value_not).parameters();
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Value value_is = parameters.get(0);
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List<Value> parameters_is = ((Function)value_is).parameters();
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Value is_p1 = parameters_is.get(0);
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String r = MessageFormat.format( |
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"( ({0}) IS NOT NULL )",
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is_p1.toString(formatter) |
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); |
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return r;
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} |
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} |