Package net.sf.jasperreports.javascript

Class JavaScriptClassCompiler

java.lang.Object

net.sf.jasperreports.engine.design.JRAbstractCompiler

net.sf.jasperreports.javascript.JavaScriptCompilerBase

net.sf.jasperreports.javascript.JavaScriptClassCompiler

All Implemented Interfaces:

JRCompiler

public class JavaScriptClassCompiler
extends JavaScriptCompilerBase

Compiler for reports that use JavaScript as expression language. This implementation produces Java bytecode for the expressions.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

See Also:

• JavaScriptCompiledData
• JavaScriptCompiledEvaluator

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	JavaScriptClassCompiler.CompileSources

Nested classes/interfaces inherited from class net.sf.jasperreports.javascript.JavaScriptCompilerBase

JavaScriptCompilerBase.Errors, JavaScriptCompilerBase.ScriptExpressionVisitor

Field Summary

Fields

Modifier and Type	Field	Description
static final String	EXCEPTION_MESSAGE_KEY_UNEXPECTED_CLASS_NAME
static final String	EXCEPTION_MESSAGE_KEY_UNEXPECTED_CLASSES_LENGTH
static final String	PROPERTY_EXPRESSIONS_PER_SCRIPT	Property that determines the maximum number of report expressions that will be included in a single generated Java class.
static final String	PROPERTY_OPTIMIZATION_LEVEL	Property that determines the optimization level to use when compiling expressions into Java bytecode.
static final String	PROPERTY_SCRIPT_MAX_SIZE	Property that determines the maximum size of a script that will be compiled into a single Java class.

Fields inherited from class net.sf.jasperreports.javascript.JavaScriptCompilerBase

EXCEPTION_MESSAGE_KEY_INVALID_COMPILE_DATA_TYPE

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

EXCEPTION_MESSAGE_KEY_CROSSTAB_ID_NOT_FOUND, EXCEPTION_MESSAGE_KEY_DESIGN_COMPILE_ERROR, EXCEPTION_MESSAGE_KEY_LANGUAGE_NOT_SUPPORTED, EXCEPTION_MESSAGE_KEY_REPORT_EXPRESSIONS_COMPILE_ERROR, EXCEPTION_MESSAGE_KEY_TEMP_DIR_NOT_FOUND, jasperReportsContext, reportClassFilter

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

COMPILER_CLASS, COMPILER_CLASSPATH, COMPILER_KEEP_JAVA_FILE, COMPILER_PREFIX, COMPILER_TEMP_DIR

Constructor Summary

Constructors

Constructor	Description
JavaScriptClassCompiler(JasperReportsContext jasperReportsContext)	Creates a JavaScript compiler.

Method Summary

Modifier and Type	Method	Description
protected void	compileScripts(JRCompilationUnit unit, org.mozilla.javascript.CompilerEnvirons compilerEnv, JavaScriptClassCompiler.CompileSources compileSources, JavaScriptCompiledData compiledData)
protected String	compileUnits(JRCompilationUnit[] units, String classpath, File tempDirFile)	Compiles several expression evaluator units.

Methods inherited from class net.sf.jasperreports.javascript.JavaScriptCompilerBase

checkLanguage, defaultExpressionCreator, estimatedExpressionCreator, generateSourceCode, getFieldVar, getParameterVar, getSourceFileName, getVariableVar, loadEvaluator, oldExpressionCreator

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

compileReport, createCompileData, createEvaluator, directValueFilter, effectiveDirectValueFilter, getCompilerClass, getSourceFile, 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

Field Details

PROPERTY_OPTIMIZATION_LEVEL

public static final String PROPERTY_OPTIMIZATION_LEVEL

Property that determines the optimization level to use when compiling expressions into Java bytecode. See

See Also:

• Constant Field Values

PROPERTY_EXPRESSIONS_PER_SCRIPT

public static final String PROPERTY_EXPRESSIONS_PER_SCRIPT

Property that determines the maximum number of report expressions that will be included in a single generated Java class.

See Also:

• Constant Field Values

PROPERTY_SCRIPT_MAX_SIZE

public static final String PROPERTY_SCRIPT_MAX_SIZE

Property that determines the maximum size of a script that will be compiled into a single Java class.

See Also:

• Constant Field Values

EXCEPTION_MESSAGE_KEY_UNEXPECTED_CLASS_NAME

public static final String EXCEPTION_MESSAGE_KEY_UNEXPECTED_CLASS_NAME

See Also:

• Constant Field Values

EXCEPTION_MESSAGE_KEY_UNEXPECTED_CLASSES_LENGTH

public static final String EXCEPTION_MESSAGE_KEY_UNEXPECTED_CLASSES_LENGTH

See Also:

• Constant Field Values

Constructor Details

JavaScriptClassCompiler

public JavaScriptClassCompiler(JasperReportsContext jasperReportsContext)

Creates a JavaScript compiler.

Method Details

compileUnits

protected String compileUnits(JRCompilationUnit[] units,
 String classpath,
 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

compileScripts

protected void compileScripts(JRCompilationUnit unit,
 org.mozilla.javascript.CompilerEnvirons compilerEnv,
 JavaScriptClassCompiler.CompileSources compileSources,
 JavaScriptCompiledData compiledData)