net.sf.jasperreports.compilers
Class JavaScriptCompiler

java.lang.Object
  net.sf.jasperreports.engine.design.JRAbstractCompiler
      net.sf.jasperreports.compilers.JavaScriptCompiler

All Implemented Interfaces:

JRCompiler

public class JavaScriptCompiler
extends JRAbstractCompiler

Compiler for reports that use JavaScript as expression language.

Version:

$Id: JavaScriptCompiler.java 3032 2009-08-27 11:32:28Z teodord $

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Field Summary

Fields inherited from interface net.sf.jasperreports.engine.design.JRCompiler

COMPILER_PREFIX

Constructor Summary

JavaScriptCompiler()
Creates a JavaScript compiler.

Method Summary

protected void	appendError(java.lang.StringBuffer errors, int errorCount, org.mozilla.javascript.EvaluatorException e)
protected void	checkLanguage(java.lang.String language) Checks that the report language is supported by the compiler.
protected java.lang.String	compileUnits(JRCompilationUnit[] units, java.lang.String classpath, java.io.File tempDirFile) Compiles several expression evaluator units.
protected JRCompilationSourceCode	generateSourceCode(JRSourceCompileTask sourceTask) Generates expression evaluator code.
protected java.lang.String	getSourceFileName(java.lang.String unitName) Returns the name of the source file where generated source code for an unit is saved.
protected JREvaluator	loadEvaluator(java.io.Serializable compileData, java.lang.String unitName) Creates an expression evaluator instance from data saved when the report was compiled.

Methods inherited from class net.sf.jasperreports.engine.design.JRAbstractCompiler

compileReport, getCompilerClass, getUnitName, getUnitName, getUnitName, getUnitName, getUnitName, loadEvaluator, loadEvaluator, loadEvaluator

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaScriptCompiler

public JavaScriptCompiler()

Creates a JavaScript compiler.

Method Detail

checkLanguage

protected void checkLanguage(java.lang.String language)
                      throws JRException

Description copied from class: JRAbstractCompiler

Checks that the report language is supported by the compiler.

Specified by:

checkLanguage in class JRAbstractCompiler

Parameters:

language - the report language

Throws:

JRException

compileUnits

protected java.lang.String compileUnits(JRCompilationUnit[] units,
                                        java.lang.String classpath,
                                        java.io.File tempDirFile)
                                 throws JRException

Description copied from class: JRAbstractCompiler

Compiles several expression evaluator units.

The result of the compilation should be set by calling setCompileData on all compile units.

Specified by:

compileUnits in class JRAbstractCompiler

Parameters:

units - the compilation units

classpath - the compilation classpath

tempDirFile - temporary directory

Returns:

a string containing compilation errors, or null if the compilation was successfull

Throws:

JRException

appendError

protected void appendError(java.lang.StringBuffer errors,
                           int errorCount,
                           org.mozilla.javascript.EvaluatorException e)

generateSourceCode

protected JRCompilationSourceCode generateSourceCode(JRSourceCompileTask sourceTask)
                                              throws JRException

Description copied from class: JRAbstractCompiler

Generates expression evaluator code.

Specified by:

generateSourceCode in class JRAbstractCompiler

Parameters:

sourceTask - the source code generation information

Returns:

generated expression evaluator code

Throws:

JRException

getSourceFileName

protected java.lang.String getSourceFileName(java.lang.String unitName)

Description copied from class: JRAbstractCompiler

Returns the name of the source file where generated source code for an unit is saved.

If the compiler needs source files for compilation or COMPILER_KEEP_JAVA_FILE is set, the generated source will be saved in a file having the name returned by this method.

Specified by:

getSourceFileName in class JRAbstractCompiler

Parameters:

unitName - the unit name

Returns:

the source file name

loadEvaluator

protected JREvaluator loadEvaluator(java.io.Serializable compileData,
                                    java.lang.String unitName)
                             throws JRException

Description copied from class: JRAbstractCompiler

Creates an expression evaluator instance from data saved when the report was compiled.

Specified by:

loadEvaluator in class JRAbstractCompiler

Parameters:

compileData - the data saved when the report was compiled

unitName - the evaluator unit name

Returns:

an expression evaluator instance

Throws:

JRException