org.gvsig.integration

Class DefaultExpressionEvaluator

java.lang.Object

org.gvsig.tools.evaluator.AbstractEvaluator

org.gvsig.integration.DefaultExpressionEvaluator

All Implemented Interfaces:

ExpressionEvaluator, Evaluator, EvaluatorWithDescriptions

public class DefaultExpressionEvaluator
extends AbstractEvaluator
implements ExpressionEvaluator

Nested Class Summary

Nested classes/interfaces inherited from interface org.gvsig.tools.evaluator.EvaluatorWithDescriptions

EvaluatorWithDescriptions.Description

Constructor Summary

Constructors

Constructor and Description
DefaultExpressionEvaluator()

Method Summary

Modifier and Type	Method and Description
void	compile()
Object	evaluate(EvaluatorData data) Evaluate with the data passed as parameter.
Double	getAccuracy()
EvaluatorWithDescriptions.Description[]	getAvailableFunctions()
EvaluatorWithDescriptions.Description[]	getAvailableOperators()
Code	getCode()
Compiler	getCompiler()
Interpreter	getInterpreter()
LexicalAnalyzer	getLexer()
String	getName() Get the symbolic name of the evaluator.
String	getSource()
SymbolTable	getSymbolTable()
void	setAccuracy(Double accuracy)
void	setCompiler(Compiler compiler)
void	setInterpreter(Interpreter interpreter)
void	setLexer(LexicalAnalyzer lexer)
void	setSource(String source)
void	setSymbolTable(SymbolTable symbolTable)

Methods inherited from class org.gvsig.tools.evaluator.AbstractEvaluator

getDescription, getFieldsInfo, getSQL

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.gvsig.tools.evaluator.Evaluator

getDescription, getFieldsInfo, getSQL

Constructor Detail

DefaultExpressionEvaluator

public DefaultExpressionEvaluator()

Method Detail

getCode

public Code getCode()

Specified by:

getCode in interface ExpressionEvaluator

compile

public void compile()

Specified by:

compile in interface ExpressionEvaluator

evaluate

public Object evaluate(EvaluatorData data)
                throws EvaluatorException

Description copied from interface: Evaluator

Evaluate with the data passed as parameter.

Specified by:

evaluate in interface Evaluator

Returns:

the result of the evaluation.

Throws:

EvaluatorException - if an issue is found while evaluating. The subclass EvaluatorParseException is used to indicate a problem while parsing (malformed expression) rather than a problem while evaluating.

getName

public String getName()

Description copied from interface: Evaluator

Get the symbolic name of the evaluator.

Specified by:

getName in interface Evaluator

Returns:

evaluator's name

getAvailableOperators

public EvaluatorWithDescriptions.Description[] getAvailableOperators()

Specified by:

getAvailableOperators in interface EvaluatorWithDescriptions

getAvailableFunctions

public EvaluatorWithDescriptions.Description[] getAvailableFunctions()

Specified by:

getAvailableFunctions in interface EvaluatorWithDescriptions

getSymbolTable

public SymbolTable getSymbolTable()

Specified by:

getSymbolTable in interface ExpressionEvaluator

setSymbolTable

public void setSymbolTable(SymbolTable symbolTable)

Specified by:

setSymbolTable in interface ExpressionEvaluator

getLexer

public LexicalAnalyzer getLexer()

Specified by:

getLexer in interface ExpressionEvaluator

setLexer

public void setLexer(LexicalAnalyzer lexer)

Specified by:

setLexer in interface ExpressionEvaluator

getCompiler

public Compiler getCompiler()

Specified by:

getCompiler in interface ExpressionEvaluator

setCompiler

public void setCompiler(Compiler compiler)

Specified by:

setCompiler in interface ExpressionEvaluator

getInterpreter

public Interpreter getInterpreter()

Specified by:

getInterpreter in interface ExpressionEvaluator

setInterpreter

public void setInterpreter(Interpreter interpreter)

Specified by:

setInterpreter in interface ExpressionEvaluator

getSource

public String getSource()

Specified by:

getSource in interface ExpressionEvaluator

setSource

public void setSource(String source)

Specified by:

setSource in interface ExpressionEvaluator

getAccuracy

public Double getAccuracy()

Specified by:

getAccuracy in interface ExpressionEvaluator

setAccuracy

public void setAccuracy(Double accuracy)

Specified by:

setAccuracy in interface ExpressionEvaluator