com.ibm.di.script
Class ScriptEngineOptions

java.lang.Object
  com.ibm.jscript.JSContext
      com.ibm.di.script.ScriptEngineOptions

public class ScriptEngineOptions
extends com.ibm.jscript.JSContext

This class configures the IBM JS script engine. Since 2.0 ScriptEngineOptions is no longer just an options class. It also provides the isDebugAllowed() method that is different for each instance of the engine. Although this could be a static hastable with reference to the current thread, the overhead of allocating a new JSContext is fairly small since we don't use the script caching features of the JSContext.

Nested Class Summary

static interface

ScriptEngineOptions.TDIDebugListener

Nested classes/interfaces inherited from class com.ibm.jscript.JSContext

com.ibm.jscript.JSContext.ILibrary, com.ibm.jscript.JSContext.LibraryInitializer, com.ibm.jscript.JSContext.PropertyResolver

Field Summary

Fields inherited from class com.ibm.jscript.JSContext

ENABLE_JSDEBUGGER

Constructor Summary

ScriptEngineOptions()

ScriptEngineOptions(boolean useCache, boolean debug)

Method Summary

void	addDebugListener(ScriptEngineOptions.TDIDebugListener listener)
boolean	autoConvertJavaArgsToString()
void	debugStatement(com.ibm.jscript.ASTTree.ASTNode statement, com.ibm.jscript.engine.IExecutionContext context) Called by ASTDebug
static com.ibm.jscript.JSContext	get() Returns a context with no debugging and cache disabled
static com.ibm.jscript.JSContext	get(boolean debug) Returns a context with debugging enabled and cache disabled
com.ibm.jscript.IValue	getProperty(Object object, String propertyName)
boolean	hasGlobalObjectExtensions()
boolean	hasJavaBeanAccess()
boolean	hasJUnitExtensions()
boolean	hasListOperator()
boolean	hasMathExtensions()
boolean	hasObjectPrototypeExtensions()
boolean	hasRhinoExtensions()
boolean	hasStringExtendedMethods()
boolean	hasStringLengthAsMethod()
boolean	ignoreJavaCallAmbiguities()
boolean	isDebugAllowed()
boolean	putProperty(Object object, String propertyName, com.ibm.jscript.IValue value)
void	removeDebugListener(ScriptEngineOptions.TDIDebugListener listener)
void	setDebugAllowed(boolean debugAllowed) Call this method do enable/disabled debug call-backs
com.ibm.jscript.types.JavaWrapperObject	wrapObject(Object o)

Methods inherited from class com.ibm.jscript.JSContext

addDesignTimeClassLoader, createExpression, createExpression, evaluateConstant, evaluateConstantAsString, getASTProgram, getCachedExpression, getClassInfo, getDesignTimeClassLoaders, getExpression, getExpression, getExpression, getExpression, getExpression, getExpression, getJsonFactory, getLibraryInitializer, getPropertyResolver, getRegistry, getStandardStream, getStaticContext, getVersion, hasExpressionCache, hasJSLibrary, hasRhinoProtoExtensions, includeCallerFunctionContext, init, loadClass, loadLibrary, parseScript, print, println, putCachedExpression, putClassInfo, setJsonFactory, setLibraryInitializer, setPropertyResolver, setVersion, useGeneratedWrappers

Methods inherited from class java.lang.Object

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

Constructor Detail

ScriptEngineOptions

public ScriptEngineOptions()

ScriptEngineOptions

public ScriptEngineOptions(boolean useCache,
                           boolean debug)

Method Detail

get

public static com.ibm.jscript.JSContext get()

Returns a context with no debugging and cache disabled

Returns:

a context.

get

public static com.ibm.jscript.JSContext get(boolean debug)

Returns a context with debugging enabled and cache disabled

Returns:

a context.

addDebugListener

public void addDebugListener(ScriptEngineOptions.TDIDebugListener listener)

removeDebugListener

public void removeDebugListener(ScriptEngineOptions.TDIDebugListener listener)

debugStatement

public void debugStatement(com.ibm.jscript.ASTTree.ASTNode statement,
                           com.ibm.jscript.engine.IExecutionContext context)
                    throws com.ibm.jscript.JavaScriptException

Called by ASTDebug

Parameters:

statement - The statement about to be executed

context - The context in which the statement executes

Throws:

com.ibm.jscript.JavaScriptException

isDebugAllowed

public boolean isDebugAllowed()

Overrides:

isDebugAllowed in class com.ibm.jscript.JSContext

setDebugAllowed

public void setDebugAllowed(boolean debugAllowed)

Call this method do enable/disabled debug call-backs

Parameters:

debugAllowed -

hasStringLengthAsMethod

public boolean hasStringLengthAsMethod()

Overrides:

hasStringLengthAsMethod in class com.ibm.jscript.JSContext

Returns:

true

hasStringExtendedMethods

public boolean hasStringExtendedMethods()

Overrides:

hasStringExtendedMethods in class com.ibm.jscript.JSContext

Returns:

true

hasGlobalObjectExtensions

public boolean hasGlobalObjectExtensions()

Overrides:

hasGlobalObjectExtensions in class com.ibm.jscript.JSContext

Returns:

false

hasJUnitExtensions

public boolean hasJUnitExtensions()

Overrides:

hasJUnitExtensions in class com.ibm.jscript.JSContext

Returns:

false

hasObjectPrototypeExtensions

public boolean hasObjectPrototypeExtensions()

Overrides:

hasObjectPrototypeExtensions in class com.ibm.jscript.JSContext

Returns:

true

hasMathExtensions

public boolean hasMathExtensions()

Overrides:

hasMathExtensions in class com.ibm.jscript.JSContext

Returns:

true

hasListOperator

public boolean hasListOperator()

Overrides:

hasListOperator in class com.ibm.jscript.JSContext

Returns:

false

hasRhinoExtensions

public boolean hasRhinoExtensions()

Overrides:

hasRhinoExtensions in class com.ibm.jscript.JSContext

Returns:

true

hasJavaBeanAccess

public boolean hasJavaBeanAccess()

Overrides:

hasJavaBeanAccess in class com.ibm.jscript.JSContext

Returns:

true

autoConvertJavaArgsToString

public boolean autoConvertJavaArgsToString()

Overrides:

autoConvertJavaArgsToString in class com.ibm.jscript.JSContext

Returns:

true

ignoreJavaCallAmbiguities

public boolean ignoreJavaCallAmbiguities()

Overrides:

ignoreJavaCallAmbiguities in class com.ibm.jscript.JSContext

Returns:

true

getProperty

public com.ibm.jscript.IValue getProperty(Object object,
                                          String propertyName)
                                   throws com.ibm.jscript.InterpretException

Overrides:

getProperty in class com.ibm.jscript.JSContext

Throws:

com.ibm.jscript.InterpretException

putProperty

public boolean putProperty(Object object,
                           String propertyName,
                           com.ibm.jscript.IValue value)
                    throws com.ibm.jscript.InterpretException

Overrides:

putProperty in class com.ibm.jscript.JSContext

Throws:

com.ibm.jscript.InterpretException

wrapObject

public com.ibm.jscript.types.JavaWrapperObject wrapObject(Object o)

Overrides:

wrapObject in class com.ibm.jscript.JSContext