compact1, compact2, compact3
javax.script
Class CompiledScript
- java.lang.Object
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- javax.script.CompiledScript
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public abstract class CompiledScript extends Object
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.
EachCompiledScriptis associated with aScriptEngine-- A call to anevalmethod of theCompiledScriptcauses the execution of the script by theScriptEngine. Changes in the state of theScriptEnginecaused by execution of theCompiledScriptmay visible during subsequent executions of scripts by the engine.- Since:
- 1.6
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Constructor Summary
Constructors Constructor and Description CompiledScript()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method and Description Objecteval()Executes the program stored in theCompiledScriptobject.Objecteval(Bindings bindings)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 ScriptEnginegetEngine()Returns theScriptEnginewhosecompilemethod created thisCompiledScript.
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Method Detail
eval
public abstract Object eval(ScriptContext context) throws ScriptException
Executes the program stored in thisCompiledScriptobject.- Parameters:
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context- AScriptContextthat is used in the same way as theScriptContextpassed to theevalmethods ofScriptEngine. - Returns:
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The value returned by the script execution, if any. Should return
nullif no value is returned by the script execution. - Throws:
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ScriptException- if an error occurs. -
NullPointerException- if context is null.
eval
public Object eval(Bindings bindings) throws ScriptException
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:
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bindings- The bindings of attributes used for theENGINE_SCOPE. - Returns:
- The return value from the script execution
- Throws:
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ScriptException- if an error occurs.
eval
public Object eval() throws ScriptException
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:
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ScriptException- if an error occurs.
getEngine
public abstract ScriptEngine getEngine()
Returns theScriptEnginewhosecompilemethod created thisCompiledScript. TheCompiledScriptwill execute in this engine.- Returns:
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The
ScriptEnginethat created thisCompiledScript
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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