Class CompiledScript
java.lang.Object
javax.script.CompiledScript
Extended by classes that store results of compilations. State
might be stored in the form of Java classes, Java class files or scripting
language opcodes. The script may be executed repeatedly
without reparsing.
Each
Each
CompiledScript is associated with a ScriptEngine -- A call to an eval
method of the CompiledScript causes the execution of the script by the
ScriptEngine. Changes in the state of the ScriptEngine caused by execution
of the CompiledScript may visible during subsequent executions of scripts by the engine.- Since:
- 1.6
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptioneval()Executes the program stored in theCompiledScriptobject.Executes the program stored in theCompiledScriptobject using the suppliedBindingsof attributes as theENGINE_SCOPEof the associatedScriptEngineduring script execution.abstract Objecteval(ScriptContext context) Executes the program stored in thisCompiledScriptobject.abstract ScriptEngineReturns theScriptEnginewhosecompilemethod created thisCompiledScript.
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Constructor Details
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CompiledScript
public CompiledScript()Constructor for subclasses to call.
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Method Details
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eval
Executes the program stored in thisCompiledScriptobject.- Parameters:
context- AScriptContextthat is used in the same way as theScriptContextpassed to theevalmethods ofScriptEngine.- Returns:
- The value returned by the script execution, if any. Should return
nullif no value is returned by the script execution. - Throws:
ScriptException- if an error occurs.NullPointerException- if context is null.
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eval
Executes the program stored in theCompiledScriptobject using the suppliedBindingsof attributes as theENGINE_SCOPEof the associatedScriptEngineduring script execution. If bindings is null, then the effect of calling this method is same as that of eval(getEngine().getContext()).. The
GLOBAL_SCOPEBindings,ReaderandWriterassociated with the defaultScriptContextof the associatedScriptEngineare used.- Parameters:
bindings- The bindings of attributes used for theENGINE_SCOPE.- Returns:
- The return value from the script execution
- Throws:
ScriptException- if an error occurs.
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eval
Executes the program stored in theCompiledScriptobject. The defaultScriptContextof the associatedScriptEngineis used. The effect of calling this method is same as that of eval(getEngine().getContext()).- Returns:
- The return value from the script execution
- Throws:
ScriptException- if an error occurs.
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getEngine
Returns theScriptEnginewhosecompilemethod created thisCompiledScript. TheCompiledScriptwill execute in this engine.- Returns:
- The
ScriptEnginethat created thisCompiledScript
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