## org.codehaus.groovy.bsf
Class GroovyEngine

    java.lang.Object
      org.apache.bsf.util.BSFEngineImpl
          org.codehaus.groovy.bsf.GroovyEngine

All Implemented Interfaces:
  PropertyChangeListener, 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
`protected GroovyShell` `shell`

Fields inherited from class org.apache.bsf.util.BSFEngineImpl
`classLoader, classPath, declaredBeans, lang, mgr, tempDir`

Constructor Summary
`GroovyEngine()`

Method Summary
`Object` `apply(String source, int lineNo, int columnNo, Object funcBody, Vector paramNames, Vector arguments)` Allow an anonymous function to be declared and invoked
`Object` `call(Object object, String method, Object[] args)` Call the named method of the given object.
`void` `declareBean(org.apache.bsf.BSFDeclaredBean bean)` Declare a bean
`Object` `eval(String source, int lineNo, int columnNo, Object script)` Evaluate an expression.
`void` `exec(String source, int lineNo, int columnNo, Object script)` Execute a script.
`protected GroovyShell` `getEvalShell()`
`void` `initialize(org.apache.bsf.BSFManager mgr, String lang, 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 Object apply(String source,
                        int lineNo,
                        int columnNo,
                        Object funcBody,
                        Vector paramNames,
                        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 Object call(Object object,
                       String method,
                       Object[] args)
                throws org.apache.bsf.BSFException

  Call the named method of the given object.

  Throws:
    `org.apache.bsf.BSFException`

### eval

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

  Evaluate an expression.

  Throws:
    `org.apache.bsf.BSFException`

### exec

    public void exec(String source,
                     int lineNo,
                     int columnNo,
                     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,
                           String lang,
                           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

Copyright © 2003-2009 The Codehaus. All rights reserved.