File	Doc	Category	Size	Date	Package
ScriptContext.java	API Doc	Java SE 6 API	6389	Tue Jun 10 00:26:26 BST 2008	javax.script

ScriptContext

Fields Summary
public static final int	ENGINE_SCOPE EngineScope attributes are visible during the lifetime of a single ScriptEngine and a set of attributes is maintained for each engine.
public static final int	GLOBAL_SCOPE GlobalScope attributes are visible to all engines created by same ScriptEngineFactory.

Constructors Summary

Methods Summary
public java.lang.Object	getAttribute(java.lang.String name, int scope) Gets the value of an attribute in a given scope. param name The name of the attribute to retrieve. param scope The scope in which to retrieve the attribute. return The value of the attribute. Returns null is the name does not exist in the given scope. throws IllegalArgumentException if the name is empty or if the value of scope is invalid. throws NullPointerException if the name is null.
public java.lang.Object	getAttribute(java.lang.String name) Retrieves the value of the attribute with the given name in the scope occurring earliest in the search order. The order is determined by the numeric value of the scope parameter (lowest scope values first.) param name The name of the the attribute to retrieve. return The value of the attribute in the lowest scope for which an attribute with the given name is defined. Returns null if no attribute with the name exists in any scope. throws NullPointerException if the name is null. throws IllegalArgumentException if the name is empty.
public int	getAttributesScope(java.lang.String name) Get the lowest scope in which an attribute is defined. param name Name of the attribute . return The lowest scope. Returns -1 if no attribute with the given name is defined in any scope. throws NullPointerException if name is null. throws IllegalArgumentException if name is empty.
public javax.script.Bindings	getBindings(int scope) Gets the Bindings associated with the given scope in this ScriptContext. return The associated Bindings. Returns null if it has not been set. throws IllegalArgumentException If no Bindings is defined for the specified scope value in ScriptContext of this type.
public java.io.Writer	getErrorWriter() Returns the Writer used to display error output. return The Writer
public java.io.Reader	getReader() Returns a Reader to be used by the script to read input. return The Reader.
public java.util.List	getScopes() Returns immutable List of all the valid values for scope in the ScriptContext. return list of scope values
public java.io.Writer	getWriter() Returns the Writer for scripts to use when displaying output. return The Writer.
public java.lang.Object	removeAttribute(java.lang.String name, int scope) Remove an attribute in a given scope. param name The name of the attribute to remove param scope The scope in which to remove the attribute return The removed value. throws IllegalArgumentException if the name is empty or if the scope is invalid. throws NullPointerException if the name is null.
public void	setAttribute(java.lang.String name, java.lang.Object value, int scope) Sets the value of an attribute in a given scope. param name The name of the attribute to set param value The value of the attribute param scope The scope in which to set the attribute throws IllegalArgumentException if the name is empty or if the scope is invalid. throws NullPointerException if the name is null.
public void	setBindings(javax.script.Bindings bindings, int scope) Associates a Bindings instance with a particular scope in this ScriptContext. Calls to the getAttribute and setAttribute methods must map to the get and put methods of the Bindings for the specified scope. param bindings The Bindings to associate with the given scope param scope The scope throws IllegalArgumentException If no Bindings is defined for the specified scope value in ScriptContexts of this type. throws NullPointerException if value of scope is ENGINE_SCOPE and the specified Bindings is null.
public void	setErrorWriter(java.io.Writer writer) Sets the Writer used to display error output. param writer The Writer.
public void	setReader(java.io.Reader reader) Sets the Reader for scripts to read input . param reader The new Reader.
public void	setWriter(java.io.Writer writer) Sets the Writer for scripts to use when displaying output. param writer The new Writer.