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Java Source Code / Java Documentation » Scripting » beanshell » bsh.engine 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   javax.script.AbstractScriptEngine
      bsh.engine.BshScriptEngine

BshScriptEngine
public class BshScriptEngine extends AbstractScriptEngine implements Compilable,Invocable(Code)

Inner Class :class WriterOutputStream extends OutputStream

Field Summary
final static  StringengineNameSpaceKey
    

Constructor Summary
public  BshScriptEngine()
    
public  BshScriptEngine(BshScriptEngineFactory factory)
    

Method Summary
public  CompiledScriptcompile(String script)
     Compiles the script (source represented as a String) for later execution.
Parameters:
  script - The source of the script, represented as aString.
public  CompiledScriptcompile(Reader script)
     Compiles the script (source read from Reader) for later execution.
public  BindingscreateBindings()
    
public  Objecteval(String script, ScriptContext scriptContext)
    
public  Objecteval(Reader reader, ScriptContext scriptContext)
    
public  ScriptEngineFactorygetFactory()
    
public  TgetInterface(Class<T> clasz)
     Returns an implementation of an interface using procedures compiled in the interpreter.
public  TgetInterface(Object thiz, Class<T> clasz)
     Returns an implementation of an interface using member functions of a scripting object compiled in the interpreter.
protected  InterpretergetInterpreter()
    
public  Objectinvoke(Object thiz, String name, Object... args)
     Calls a procedure compiled during a previous script execution, which is retained in the state of the ScriptEngine.
Parameters:
  name - The name of the procedure to be called.
Parameters:
  thiz - If the procedure is a member of a class defined in the scriptand thiz is an instance of that class returned by a previous execution orinvocation, the named method is called through that instance.
public  Objectinvoke(String name, Object... args)
     Same as invoke(Object, String, Object...) with null as the first argument.

Field Detail
engineNameSpaceKey
final static String engineNameSpaceKey(Code)




Constructor Detail
BshScriptEngine
public BshScriptEngine()(Code)



BshScriptEngine
public BshScriptEngine(BshScriptEngineFactory factory)(Code)




Method Detail
compile
public CompiledScript compile(String script) throws ScriptException(Code)
Compiles the script (source represented as a String) for later execution.
Parameters:
  script - The source of the script, represented as aString. An subclass of CompiledScript to be executed laterusing one of the eval methods of CompiledScript.
throws:
  ScriptException - if compilation fails.
throws:
  NullPointerException - if the argument is null.



compile
public CompiledScript compile(Reader script) throws ScriptException(Code)
Compiles the script (source read from Reader) for later execution. Functionality is identical to compile(String) other than the way in which the source is passed.
Parameters:
  script - The reader from which the script source is obtained. An implementation of CompiledScript to be executedlater using one of its eval methods ofCompiledScript.
throws:
  ScriptException - if compilation fails.
throws:
  NullPointerException - if argument is null.



createBindings
public Bindings createBindings()(Code)



eval
public Object eval(String script, ScriptContext scriptContext) throws ScriptException(Code)



eval
public Object eval(Reader reader, ScriptContext scriptContext) throws ScriptException(Code)



getFactory
public ScriptEngineFactory getFactory()(Code)



getInterface
public T getInterface(Class<T> clasz)(Code)
Returns an implementation of an interface using procedures compiled in the interpreter. The methods of the interface may be implemented using the invoke method.
Parameters:
  clasz - The Class object of the interface to return. An instance of requested interface - null if the requested interfaceis unavailable, i. e. if compiled methods in theScriptEngine cannot be found matching the ones in therequested interface.
throws:
  IllegalArgumentException - if the specified Class objectdoes not exist or is not an interface.



getInterface
public T getInterface(Object thiz, Class<T> clasz)(Code)
Returns an implementation of an interface using member functions of a scripting object compiled in the interpreter. The methods of the interface may be implemented using invoke(Object, String, Object...) method.
Parameters:
  thiz - The scripting object whose member functions are used toimplement the methods of the interface.
Parameters:
  clasz - The Class object of the interface to return. An instance of requested interface - null if the requestedinterface is unavailable, i. e. if compiled methods in theScriptEngine cannot be found matching the ones in therequested interface.
throws:
  IllegalArgumentException - if the specified Class objectdoes not exist or is not an interface, or if the specified Object is nullor does not represent a scripting object.



getInterpreter
protected Interpreter getInterpreter()(Code)



invoke
public Object invoke(Object thiz, String name, Object... args) throws ScriptException, NoSuchMethodException(Code)
Calls a procedure compiled during a previous script execution, which is retained in the state of the ScriptEngine.
Parameters:
  name - The name of the procedure to be called.
Parameters:
  thiz - If the procedure is a member of a class defined in the scriptand thiz is an instance of that class returned by a previous execution orinvocation, the named method is called through that instance. If classes arenot supported in the scripting language or if the procedure is not a memberfunction of any class, the argument must be null.
Parameters:
  args - Arguments to pass to the procedure. The rules for convertingthe arguments to scripting variables are implementation-specific. The value returned by the procedure. The rules for converting thescripting variable returned by the procedure to a Java Object areimplementation-specific.
throws:
  javax.script.ScriptException - if an error occurrs during invocationof the method.
throws:
  NoSuchMethodException - if method with given name or matching argumenttypes cannot be found.
throws:
  NullPointerException - if method name is null.



invoke
public Object invoke(String name, Object... args) throws ScriptException, NoSuchMethodException(Code)
Same as invoke(Object, String, Object...) with null as the first argument. Used to call top-level procedures defined in scripts.
Parameters:
  args - Arguments to pass to the procedure The value returned by the procedure
throws:
  javax.script.ScriptException - if an error occurrs during invocationof the method.
throws:
  NoSuchMethodException - if method with given name or matchingargument types cannot be found.
throws:
  NullPointerException - if method name is null.



Fields inherited from javax.script.AbstractScriptEngine
protected ScriptContext context(Code)(Java Doc)

Methods inherited from javax.script.AbstractScriptEngine
public Object eval(Reader reader, Bindings bindings) throws ScriptException(Code)(Java Doc)
public Object eval(String script, Bindings bindings) throws ScriptException(Code)(Java Doc)
public Object eval(Reader reader) throws ScriptException(Code)(Java Doc)
public Object eval(String script) throws ScriptException(Code)(Java Doc)
public Object get(String key)(Code)(Java Doc)
public Bindings getBindings(int scope)(Code)(Java Doc)
public ScriptContext getContext()(Code)(Java Doc)
protected ScriptContext getScriptContext(Bindings nn)(Code)(Java Doc)
public void put(String key, Object value)(Code)(Java Doc)
public void setBindings(Bindings bindings, int scope)(Code)(Java Doc)
public void setContext(ScriptContext ctxt)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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