org.shapelogic.scripting
Class FunctionTransform<In,E>

java.lang.Object
  org.shapelogic.scripting.FunctionTransform<In,E>

All Implemented Interfaces:

IndexTransform<In,E>

public class FunctionTransform<In,E>
extends java.lang.Object
implements IndexTransform<In,E>

IndexTransform based on an expression in a Scripting language using JSR 223. Requires Groovy to be installed. Need special installation of groovy-engine.jar that need to be downloade from Sun. Requires that the scripting language support the invocable interface.

Author:

Sami Badawi

Field Summary

protected java.lang.String	_expression
protected java.lang.String	_functionName
protected java.lang.String	_language
protected java.lang.String	_name
protected javax.script.ScriptEngine	_scriptEngine
protected javax.script.ScriptEngineManager	_scriptEngineManager
protected ScriptingConnect	_scriptingConnect
static java.lang.String	DEFAULT_LANGUAGE
static java.lang.String	FUNCTION_NAME_SUFFIX

Constructor Summary

FunctionTransform(java.lang.String name, java.lang.String expression)

FunctionTransform(java.lang.String name, java.lang.String expression, java.lang.String language)

Method Summary

javax.script.ScriptEngine	getScriptEngine() Lazy init for a ScriptEngine
ScriptingConnect	getScriptingConnect() Lazy init for ScriptingCoonect
void	put(java.lang.String key, java.lang.Object value)
E	transform(In input, int index)

Methods inherited from class java.lang.Object

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

Field Detail

FUNCTION_NAME_SUFFIX

public static final java.lang.String FUNCTION_NAME_SUFFIX

See Also:

Constant Field Values

DEFAULT_LANGUAGE

public static final java.lang.String DEFAULT_LANGUAGE

See Also:

Constant Field Values

_scriptingConnect

protected ScriptingConnect _scriptingConnect

_scriptEngine

protected javax.script.ScriptEngine _scriptEngine

_scriptEngineManager

protected javax.script.ScriptEngineManager _scriptEngineManager

_name

protected java.lang.String _name

_expression

protected java.lang.String _expression

_functionName

protected java.lang.String _functionName

_language

protected java.lang.String _language

Constructor Detail

FunctionTransform

public FunctionTransform(java.lang.String name,
                         java.lang.String expression,
                         java.lang.String language)

FunctionTransform

public FunctionTransform(java.lang.String name,
                         java.lang.String expression)

Method Detail

getScriptingConnect

public ScriptingConnect getScriptingConnect()

Lazy init for ScriptingCoonect

getScriptEngine

public javax.script.ScriptEngine getScriptEngine()

Lazy init for a ScriptEngine

transform

public E transform(In input,
                   int index)

Specified by:

transform in interface IndexTransform<In,E>

put

public void put(java.lang.String key,
                java.lang.Object value)