Package org.mozilla.javascript.tools.shell

Class Environment

java.lang.Object

org.mozilla.javascript.ScriptableObject

org.mozilla.javascript.tools.shell.Environment

All Implemented Interfaces:

Serializable, ConstProperties, DebuggableObject, Scriptable

public class Environment
extends ScriptableObject

Environment, intended to be instantiated at global scope, provides a natural way to access System properties from JavaScript.

See Also:

• Serialized Form

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

Constructors

Constructor	Description
Environment()
Environment(ScriptableObject scope)

Method Summary

Modifier and Type	Method	Description
static void	defineClass(ScriptableObject scope)
Object	get(String name, Scriptable start)	Returns the value of the named property or NOT_FOUND.
Object[]	getAllIds()	Returns an array of ids for the properties of the object.
String	getClassName()	Return the name of the class.
Object[]	getIds()	Returns an array of ids for the properties of the object.
boolean	has(String name, Scriptable start)	Returns true if the named property is defined.
void	put(String name, Scriptable start, Object value)	Sets the value of the named property, creating it if need be.

Methods inherited from class org.mozilla.javascript.ScriptableObject

associateValue, avoidObjectDetection, callMethod, callMethod, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, delete, deleteProperty, deleteProperty, get, get, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGetterOrSetter, getObjectPrototype, getParentScope, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, hasInstance, hasProperty, hasProperty, isConst, isEmpty, isExtensible, isSealed, preventExtensions, put, putConst, putConstProperty, putProperty, putProperty, redefineProperty, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype, size

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Environment

public Environment()

Environment

public Environment(ScriptableObject scope)

Method Details

defineClass

public static void defineClass(ScriptableObject scope)

getClassName

public 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

Specified by:

getClassName in class ScriptableObject

has

public boolean has(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 ScriptableObject

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 Object get(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 ScriptableObject

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()

put

public void put(String name,
 Scriptable start,
 Object value)

Description copied from class: ScriptableObject

Sets the value of the named property, creating it if need be. If the property was created using defineProperty, the appropriate setter method is called.

If the property's attributes include READONLY, no action is taken. This method will actually set the property in the start object.

Specified by:

put in interface Scriptable

Overrides:

put in class ScriptableObject

Parameters:

name - the name of the property

start - the object whose property is being set

value - value to set the property to

See Also:

• Scriptable.has(String, Scriptable)
• Scriptable.get(String, Scriptable)
• ScriptableObject.putProperty(Scriptable, String, Object)
• Context.toObject(Object, Scriptable)

getIds

public Object[] getIds()

Description copied from class: ScriptableObject

Returns an array of ids for the properties of the object.

Any properties with the attribute DONTENUM are not listed.

Specified by:

getIds in interface Scriptable

Overrides:

getIds in class ScriptableObject

Returns:

an array of java.lang.Objects with an entry for every listed property. Properties accessed via an integer index will have a corresponding Integer entry in the returned array. Properties accessed by a String will have a String entry in the returned array.

getAllIds

public Object[] getAllIds()

Description copied from class: ScriptableObject

Returns an array of ids for the properties of the object.

All properties, even those with attribute DONTENUM, are listed.

Specified by:

getAllIds in interface DebuggableObject

Overrides:

getAllIds in class ScriptableObject

Returns:

an array of java.lang.Objects with an entry for every listed property. Properties accessed via an integer index will have a corresponding Integer entry in the returned array. Properties accessed by a String will have a String entry in the returned array.