Revision 43984 trunk/org.gvsig.desktop/org.gvsig.desktop.compat.cdc/org.gvsig.fmap.dal/org.gvsig.fmap.dal.impl/src/main/java/org/gvsig/fmap/dal/impl/expressionevaluator/DefaultExpressionEvaluator.java

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DefaultExpressionEvaluator.java
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import org.gvsig.expressionevaluator.Interpreter;
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import org.gvsig.expressionevaluator.SymbolTable;
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import org.gvsig.expressionevaluator.Compiler;
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import org.gvsig.expressionevaluator.Expression;
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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator;
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import org.gvsig.expressionevaluator.ExpressionEvaluatorManager;
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import org.gvsig.expressionevaluator.Function;
......
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    private Compiler compiler;
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    private Interpreter interpreter;
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    private Code code;
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    private String source;
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    private Expression expression;
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    private Description[] availableOperators;
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    private Description[] availableFunctions;
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    public DefaultExpressionEvaluator(String source) {


  		




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        this.featureSymbolTable = new DefaultFeatureSymbolTable();


  		




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        this.source = source;


  		




  
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        this.expression = ExpressionEvaluatorLocator.getManager().createExpression();


  		




  
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        this.expression.setPhrase(source);


  		




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    }


  		




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    public DefaultExpressionEvaluator(Expression expression) {


  		




  
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        this.expression = expression;


  		




  
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        this.featureSymbolTable = new DefaultFeatureSymbolTable(


  		




  
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                expression.getUserScript(), 


  		




  
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                expression.getScripts()


  		




  
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        );


  		




  
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    }


  		




  
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    private void compile() {


  		




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        this.code = this.compiler.compileExpression(source);


  		




  
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        this.code = this.compiler.compileExpression(expression.getPhrase());


  		




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    }


  		




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    @Override


  		




  ......




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    public Evaluator clone() throws CloneNotSupportedException {


  		




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        DefaultExpressionEvaluator other = (DefaultExpressionEvaluator) super.clone();


  		




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        other.code = this.code;


  		




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        other.source = this.source;


  		




  
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        other.expression = this.expression.clone();


  		




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        other.availableFunctions = null;


  		




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        other.availableOperators = null;


  		




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        if (this.featureSymbolTable != null) {


  		




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            // evaluatorData don't support clone.


  		




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            other.featureSymbolTable = this.featureSymbolTable.clone();


  		




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        }


  		




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        if (this.compiler != null) {


  		












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