org.mozilla.javascript
Class ImporterTopLevel

java.lang.Object
  org.mozilla.javascript.ScriptableObject
      org.mozilla.javascript.IdScriptableObject
          org.mozilla.javascript.TopLevel
              org.mozilla.javascript.ImporterTopLevel

All Implemented Interfaces:

java.io.Serializable, ConstProperties, DebuggableObject, IdFunctionCall, Scriptable

public class ImporterTopLevel
extends TopLevel

Class ImporterTopLevel This class defines a ScriptableObject that can be instantiated as a top-level ("global") object to provide functionality similar to Java's "import" statement.

This class can be used to create a top-level scope using the following code:

  Scriptable scope = new ImporterTopLevel(cx);
 

Then JavaScript code will have access to the following methods:

• importClass - will "import" a class by making its unqualified name available as a property of the top-level scope
• importPackage - will "import" all the classes of the package by searching for unqualified names as classes qualified by the given package.

The following code from the shell illustrates this use:

 js> importClass(java.io.File)
 js> f = new File('help.txt')
 help.txt
 js> importPackage(java.util)
 js> v = new Vector()
 []




Author:
  
Norris Boyd
See Also:
Serialized Form






Nested Class Summary

 
Nested classes/interfaces inherited from class org.mozilla.javascript.TopLevel
TopLevel.Builtins
 



Field Summary

 
Fields inherited from class org.mozilla.javascript.ScriptableObject
CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST
 
Fields inherited from interface org.mozilla.javascript.Scriptable
NOT_FOUND
 



Constructor Summary
ImporterTopLevel()



           
ImporterTopLevel(Context cx)



           
ImporterTopLevel(Context cx,
                 boolean sealed)



           
 



Method Summary




 java.lang.Object
execIdCall(IdFunctionObject f,
           Context cx,
           Scriptable scope,
           Scriptable thisObj,
           java.lang.Object[] args)



          'thisObj' will be null if invoked as constructor, in which case
 instance of Scriptable should be returned.



protected  int
findPrototypeId(java.lang.String s)



           



 java.lang.Object
get(java.lang.String name,
    Scriptable start)



          Returns the value of the named property or NOT_FOUND.



 java.lang.String
getClassName()



          Return the name of the class.



 boolean
has(java.lang.String name,
    Scriptable start)



          Returns true if the named property is defined.



 void
importPackage(Context cx,
              Scriptable thisObj,
              java.lang.Object[] args,
              Function funObj)



          Deprecated. Kept only for compatibility.



static void
init(Context cx,
     Scriptable scope,
     boolean sealed)



           



protected  void
initPrototypeId(int id)



           



 void
initStandardObjects(Context cx,
                    boolean sealed)



           


 
Methods inherited from class org.mozilla.javascript.TopLevel
cacheBuiltins, getBuiltinCtor, getBuiltinCtor, getBuiltinPrototype, getBuiltinPrototype
 
Methods inherited from class org.mozilla.javascript.IdScriptableObject
activatePrototypeMap, addIdFunctionProperty, defaultGet, defaultPut, defineOwnProperty, delete, exportAsJSClass, fillConstructorProperties, findInstanceIdInfo, getAttributes, getInstanceIdName, getInstanceIdValue, getMaxInstanceId, getOwnPropertyDescriptor, hasPrototypeMap, incompatibleCallError, initPrototypeConstructor, initPrototypeMethod, initPrototypeValue, instanceIdInfo, put, setAttributes, setInstanceIdAttributes, setInstanceIdValue
 
Methods inherited from class org.mozilla.javascript.ScriptableObject
applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, equivalentValues, get, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getDefaultValue, getFunctionPrototype, getGetterOrSetter, getIds, getObjectPrototype, getParentScope, getProperty, getProperty, getPropertyIds, getPrototype, getSlot, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, hasInstance, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, putConst, putConstProperty, putProperty, putProperty, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setGetterOrSetter, setParentScope, setPrototype, size
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 





Constructor Detail



ImporterTopLevel
public ImporterTopLevel()





ImporterTopLevel
public ImporterTopLevel(Context cx)





ImporterTopLevel
public ImporterTopLevel(Context cx,
                        boolean sealed)






Method Detail



getClassName
public java.lang.String getClassName()

Description copied from class: ScriptableObject
Return the name of the class.

 This is typically the same name as the constructor.
 Classes extending ScriptableObject must implement this abstract
 method.


Specified by:
getClassName in interface Scriptable
Overrides:
getClassName in class TopLevel








init
public static void init(Context cx,
                        Scriptable scope,
                        boolean sealed)








initStandardObjects
public void initStandardObjects(Context cx,
                                boolean sealed)








has
public boolean has(java.lang.String name,
                   Scriptable start)

Description copied from class: ScriptableObject
Returns true if the named property is defined.


Specified by:
has in interface Scriptable
Overrides:
has in class IdScriptableObject


Parameters:
name - the name of the property
start - the object in which the lookup began
Returns:
true if and only if the property was found in the object
See Also:
Scriptable.get(String, Scriptable), 
ScriptableObject.getProperty(Scriptable, String)





get
public java.lang.Object get(java.lang.String name,
                            Scriptable start)

Description copied from class: ScriptableObject
Returns the value of the named property or NOT_FOUND.

 If the property was created using defineProperty, the
 appropriate getter method is called.


Specified by:
get in interface Scriptable
Overrides:
get in class IdScriptableObject


Parameters:
name - the name of the property
start - the object in which the lookup began
Returns:
the value of the property (may be null), or NOT_FOUND
See Also:
Context.getUndefinedValue()





importPackage
public void importPackage(Context cx,
                          Scriptable thisObj,
                          java.lang.Object[] args,
                          Function funObj)

Deprecated. Kept only for compatibility.








initPrototypeId
protected void initPrototypeId(int id)


Overrides:
initPrototypeId in class IdScriptableObject








execIdCall
public java.lang.Object execIdCall(IdFunctionObject f,
                                   Context cx,
                                   Scriptable scope,
                                   Scriptable thisObj,
                                   java.lang.Object[] args)

Description copied from class: IdScriptableObject
'thisObj' will be null if invoked as constructor, in which case
 instance of Scriptable should be returned.


Specified by:
execIdCall in interface IdFunctionCall
Overrides:
execIdCall in class IdScriptableObject








findPrototypeId
protected int findPrototypeId(java.lang.String s)


Overrides:
findPrototypeId in class IdScriptableObject