org.codehaus.groovy.bsf

Class GroovyEngine

java.lang.Object

org.apache.bsf.util.BSFEngineImpl

org.codehaus.groovy.bsf.GroovyEngine

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.util.EventListener, org.apache.bsf.BSFEngine

Direct Known Subclasses:

CachingGroovyEngine

public class GroovyEngine
extends org.apache.bsf.util.BSFEngineImpl

A BSF Engine for the Groovy scripting language.

It's derived from the Jython / JPython engine

Author:

James Strachan

Field Summary

Fields

Modifier and Type	Field and Description
protected GroovyShell	shell

Fields inherited from class org.apache.bsf.util.BSFEngineImpl

classLoader, classPath, declaredBeans, lang, mgr, tempDir

Constructor Summary

Constructors

Constructor and Description
GroovyEngine()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	apply(java.lang.String source, int lineNo, int columnNo, java.lang.Object funcBody, java.util.Vector paramNames, java.util.Vector arguments) Allow an anonymous function to be declared and invoked
java.lang.Object	call(java.lang.Object object, java.lang.String method, java.lang.Object[] args) Call the named method of the given object.
void	declareBean(org.apache.bsf.BSFDeclaredBean bean) Declare a bean
java.lang.Object	eval(java.lang.String source, int lineNo, int columnNo, java.lang.Object script) Evaluate an expression.
void	exec(java.lang.String source, int lineNo, int columnNo, java.lang.Object script) Execute a script.
protected GroovyShell	getEvalShell()
void	initialize(org.apache.bsf.BSFManager mgr, java.lang.String lang, java.util.Vector declaredBeans) Initialize the engine.
void	undeclareBean(org.apache.bsf.BSFDeclaredBean bean) Undeclare a previously declared bean.

Methods inherited from class org.apache.bsf.util.BSFEngineImpl

compileApply, compileExpr, compileScript, iexec, propertyChange, terminate

Methods inherited from class java.lang.Object

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

Field Detail

shell

protected GroovyShell shell

Constructor Detail

GroovyEngine

public GroovyEngine()

Method Detail

apply

public java.lang.Object apply(java.lang.String source,
                              int lineNo,
                              int columnNo,
                              java.lang.Object funcBody,
                              java.util.Vector paramNames,
                              java.util.Vector arguments)
                       throws org.apache.bsf.BSFException

Allow an anonymous function to be declared and invoked

Specified by:

apply in interface org.apache.bsf.BSFEngine

Overrides:

apply in class org.apache.bsf.util.BSFEngineImpl

Throws:

org.apache.bsf.BSFException

call

public java.lang.Object call(java.lang.Object object,
                             java.lang.String method,
                             java.lang.Object[] args)
                      throws org.apache.bsf.BSFException

Call the named method of the given object.

Throws:

org.apache.bsf.BSFException

eval

public java.lang.Object eval(java.lang.String source,
                             int lineNo,
                             int columnNo,
                             java.lang.Object script)
                      throws org.apache.bsf.BSFException

Evaluate an expression.

Throws:

org.apache.bsf.BSFException

exec

public void exec(java.lang.String source,
                 int lineNo,
                 int columnNo,
                 java.lang.Object script)
          throws org.apache.bsf.BSFException

Execute a script.

Specified by:

exec in interface org.apache.bsf.BSFEngine

Overrides:

exec in class org.apache.bsf.util.BSFEngineImpl

Throws:

org.apache.bsf.BSFException

initialize

public void initialize(org.apache.bsf.BSFManager mgr,
                       java.lang.String lang,
                       java.util.Vector declaredBeans)
                throws org.apache.bsf.BSFException

Initialize the engine.

Specified by:

initialize in interface org.apache.bsf.BSFEngine

Overrides:

initialize in class org.apache.bsf.util.BSFEngineImpl

Throws:

org.apache.bsf.BSFException

declareBean

public void declareBean(org.apache.bsf.BSFDeclaredBean bean)
                 throws org.apache.bsf.BSFException

Declare a bean

Specified by:

declareBean in interface org.apache.bsf.BSFEngine

Overrides:

declareBean in class org.apache.bsf.util.BSFEngineImpl

Throws:

org.apache.bsf.BSFException

undeclareBean

public void undeclareBean(org.apache.bsf.BSFDeclaredBean bean)
                   throws org.apache.bsf.BSFException

Undeclare a previously declared bean.

Specified by:

undeclareBean in interface org.apache.bsf.BSFEngine

Overrides:

undeclareBean in class org.apache.bsf.util.BSFEngineImpl

Throws:

org.apache.bsf.BSFException

getEvalShell

protected GroovyShell getEvalShell()

Returns:

a newly created GroovyShell using the same variable scope but a new class loader