Revision 44215 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/DefaultExpression.java
| DefaultExpression.java | ||
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| 6 | 6 |
import java.util.List; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.Code; |
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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.ExpressionUtils; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.expressionevaluator.Optimizer; |
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import org.gvsig.expressionevaluator.SymbolTable; |
| ... | ... | |
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private Code code = null; |
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private Interpreter interpreter; |
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private boolean hasNotBeenOptimized = true; |
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private SymbolTable mySymbolTable = null; |
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private boolean useBracketsForIdentifiers = false; |
|
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|
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public DefaultExpression() {
|
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|
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} |
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|
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@Override |
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public SymbolTable getSymbolTable() {
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if( this.mySymbolTable==null ) {
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this.mySymbolTable = ExpressionUtils.createSymbolTable(); |
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} |
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return this.mySymbolTable; |
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} |
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|
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@Override |
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public String getPhrase() {
|
| ... | ... | |
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public Code getCode() {
|
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if (this.code == null) {
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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this.code = manager.compile(this.phrase); |
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Compiler compiler = manager.createCompiler(); |
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compiler.getLexicalAnalyzer().setUseBracketsForIdentifiers( |
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this.useBracketsForIdentifiers |
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); |
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this.code = compiler.compileExpression(this.phrase); |
|
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} |
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return code; |
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} |
| ... | ... | |
| 176 | 192 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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this.interpreter = manager.createInterpreter(); |
| 178 | 194 |
} |
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this.interpreter.setSymbolTable(symbolTable); |
|
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if( this.hasNotBeenOptimized ) {
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Optimizer optimizer = new DefaultOptimizer(symbolTable); |
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this.code = optimizer.optimize(this.getCode()); |
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this.hasNotBeenOptimized = false; |
|
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boolean added = this.getSymbolTable().addSymbolTable(symbolTable); |
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try {
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this.interpreter.setSymbolTable(this.mySymbolTable); |
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if( this.hasNotBeenOptimized ) {
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Optimizer optimizer = new DefaultOptimizer(symbolTable); |
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this.code = optimizer.optimize(this.getCode()); |
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this.hasNotBeenOptimized = false; |
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} |
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Object x = this.interpreter.run(this.getCode()); |
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return x; |
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} finally {
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if( added ) {
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this.getSymbolTable().removeSymbolTable(symbolTable); |
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} |
|
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} |
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Object x = this.interpreter.run(this.getCode()); |
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return x; |
|
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} |
| 188 | 212 |
|
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@Override |
| ... | ... | |
| 341 | 365 |
return other; |
| 342 | 366 |
} |
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|
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@Override |
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public void setUseBracketsForIdentifiers(boolean useBracketsForIdentifiers) {
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this.useBracketsForIdentifiers = useBracketsForIdentifiers; |
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} |
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|
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@Override |
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public boolean getUseBracketsForIdentifiers() {
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return this.useBracketsForIdentifiers; |
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} |
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| 344 | 378 |
} |
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