net.sf.jasperreports.compilers

Class JRBshEvaluator

java.lang.Object

net.sf.jasperreports.engine.fill.JREvaluator

net.sf.jasperreports.compilers.JRBshEvaluator

All Implemented Interfaces:

DatasetExpressionEvaluator

public class JRBshEvaluator
extends JREvaluator

BeanShell expression evaluator that compiles expressions at fill time.

Version:

$Id: JRBshEvaluator.java 6996 2014-04-01 13:21:37Z shertage $

Author:

Teodor Danciu (teodord@users.sourceforge.net)

See Also:

JRBshCompiler

Constructor Summary

Constructors

Constructor and Description
JRBshEvaluator(java.lang.String bshScript)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	customizedInit(java.util.Map<java.lang.String,JRFillParameter> pars, java.util.Map<java.lang.String,JRFillField> fldsm, java.util.Map<java.lang.String,JRFillVariable> varsm) Initializes the parameters, fields and variables of the evaluator.
protected java.lang.Object	evaluate(int id) Evaluates an expression using current fields and variables values.
protected java.lang.Object	evaluateEstimated(int id) Evaluates an expression using estimated variables values.
protected java.lang.Object	evaluateOld(int id) Evaluates an expression using old fields and variables values.
<T> void	verify(java.util.Collection<T> expressions)

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

evaluate, evaluateEstimated, evaluateOld, getFunctionSupport, 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

Constructor Detail

JRBshEvaluator

public JRBshEvaluator(java.lang.String bshScript)
               throws JRException

Throws:

JRException

Method Detail

verify

public <T> void verify(java.util.Collection<T> expressions)
            throws JRException

Throws:

JRException

customizedInit

protected void customizedInit(java.util.Map<java.lang.String,JRFillParameter> pars,
                  java.util.Map<java.lang.String,JRFillField> fldsm,
                  java.util.Map<java.lang.String,JRFillVariable> varsm)
                       throws JRException

Description copied from class: JREvaluator

Initializes the parameters, fields and variables of the evaluator.

Specified by:

customizedInit in class JREvaluator

Parameters:

pars - the parameters indexed by name

fldsm - the fields indexed by name

varsm - the variables indexed by name

Throws:

JRException

evaluateOld

protected java.lang.Object evaluateOld(int id)
                                throws java.lang.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:

java.lang.Throwable

See Also:

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

evaluateEstimated

protected java.lang.Object evaluateEstimated(int id)
                                      throws java.lang.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:

java.lang.Throwable

See Also:

JRExpression.EVALUATION_ESTIMATED, JRFillVariable.getEstimatedValue()

evaluate

protected java.lang.Object evaluate(int id)
                             throws java.lang.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:

java.lang.Throwable

See Also:

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