net.sf.jasperreports.compilers

Class JavaScriptEvaluator

java.lang.Object

net.sf.jasperreports.engine.fill.JREvaluator

net.sf.jasperreports.compilers.JavaScriptEvaluator

All Implemented Interfaces:

DatasetExpressionEvaluator

public class JavaScriptEvaluator
extends JREvaluator

JavaScript expression evaluator that compiles expressions at fill time.

Version:

$Id: JavaScriptEvaluator.java 5448 2012-06-14 13:53:39Z lucianc $

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

See Also:

JavaScriptCompiler

Field Summary

Fields

Modifier and Type	Field and Description
static String	PROPERTY_OPTIMIZATION_LEVEL Property that determines the optimization level used when compiling expressions.

Constructor Summary

Constructors

Constructor and Description
JavaScriptEvaluator(JasperReportsContext jrContext, JavaScriptCompileData compileData) Create a JavaScript expression evaluator.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	customizedInit(Map<String,JRFillParameter> parametersMap, Map<String,JRFillField> fieldsMap, Map<String,JRFillVariable> variablesMap) Initializes the parameters, fields and variables of the evaluator.
protected Object	evaluate(int id) Evaluates an expression using current fields and variables values.
protected Object	evaluateEstimated(int id) Evaluates an expression using estimated variables values.
protected Object	evaluateExpression(String expression)
protected Object	evaluateExpression(String type, String expression) Deprecated. Replaced by evaluateExpression(String).
protected Object	evaluateOld(int id) Evaluates an expression using old fields and variables values.
protected org.mozilla.javascript.Script	getCompiledExpression(String expression)
protected JavaScriptCompileData.Expression	getExpression(int id)
protected Class<?>	getTypeClass(String type) Deprecated. To be removed.

Methods inherited from class net.sf.jasperreports.engine.fill.JREvaluator

evaluate, evaluateEstimated, evaluateOld, handleMissingResource, init, msg, msg, msg, msg, str

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_OPTIMIZATION_LEVEL

public static final String PROPERTY_OPTIMIZATION_LEVEL

Property that determines the optimization level used when compiling expressions. See

See Also:

Constant Field Values

Constructor Detail

JavaScriptEvaluator

public JavaScriptEvaluator(JasperReportsContext jrContext,
                   JavaScriptCompileData compileData)

Create a JavaScript expression evaluator.

Parameters:

compileData - the report compile data

Method Detail

customizedInit

protected void customizedInit(Map<String,JRFillParameter> parametersMap,
                  Map<String,JRFillField> fieldsMap,
                  Map<String,JRFillVariable> variablesMap)
                       throws JRException

Description copied from class: JREvaluator

Initializes the parameters, fields and variables of the evaluator.

Specified by:

customizedInit in class JREvaluator

Parameters:

parametersMap - the parameters indexed by name

fieldsMap - the fields indexed by name

variablesMap - the variables indexed by name

Throws:

JRException

evaluate

protected Object evaluate(int id)
                   throws Throwable

Description copied from class: JREvaluator

Evaluates an expression using current fields and variables values.

Specified by:

evaluate in class JREvaluator

Parameters:

id - the expression id

Returns:

the result of the evaluation

Throws:

Throwable

See Also:

JRExpression.EVALUATION_DEFAULT, JRFillVariable.getValue(), JRFillField.getValue()

evaluateEstimated

protected Object evaluateEstimated(int id)
                            throws Throwable

Description copied from class: JREvaluator

Evaluates an expression using estimated variables values.

Specified by:

evaluateEstimated in class JREvaluator

Parameters:

id - the expression id

Returns:

the result of the evaluation

Throws:

Throwable

See Also:

JRExpression.EVALUATION_ESTIMATED, JRFillVariable.getEstimatedValue()

evaluateOld

protected Object evaluateOld(int id)
                      throws Throwable

Description copied from class: JREvaluator

Evaluates an expression using old fields and variables values.

Specified by:

evaluateOld in class JREvaluator

Parameters:

id - the expression id

Returns:

the result of the evaluation

Throws:

Throwable

See Also:

JRExpression.EVALUATION_OLD, JRFillVariable.getOldValue(), JRFillField.getOldValue()

getExpression

protected JavaScriptCompileData.Expression getExpression(int id)

evaluateExpression

protected Object evaluateExpression(String type,
                        String expression)

Deprecated. Replaced by evaluateExpression(String).

evaluateExpression

protected Object evaluateExpression(String expression)

getCompiledExpression

protected org.mozilla.javascript.Script getCompiledExpression(String expression)

getTypeClass

protected Class<?> getTypeClass(String type)

Deprecated. To be removed.