Class NativeJavaArray
- java.lang.Object
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- org.mozilla.javascript.NativeJavaObject
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- org.mozilla.javascript.NativeJavaArray
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- All Implemented Interfaces:
java.io.Serializable,Scriptable,SymbolScriptable,Wrapper
public class NativeJavaArray extends NativeJavaObject implements SymbolScriptable
This class reflects Java arrays into the JavaScript environment.- See Also:
NativeJavaClass,NativeJavaObject,NativeJavaPackage, Serialized Form
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Field Summary
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Fields inherited from class org.mozilla.javascript.NativeJavaObject
isAdapter, javaObject, members, parent, prototype, staticType
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Fields inherited from interface org.mozilla.javascript.Scriptable
NOT_FOUND
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Constructor Summary
Constructors Constructor Description NativeJavaArray(Scriptable scope, java.lang.Object array)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description voiddelete(Symbol key)Delete a property with the specified key.booleanequals(java.lang.Object obj)java.lang.Objectget(int index, Scriptable start)Get a property from the object selected by an integral index.java.lang.Objectget(java.lang.String id, Scriptable start)Get a named property from the object.java.lang.Objectget(Symbol key, Scriptable start)Return the value of the property with the specified key, or NOT_FOUND.java.lang.StringgetClassName()Get the name of the set of objects implemented by this Java class.java.lang.ObjectgetDefaultValue(java.lang.Class<?> hint)Get the default value of the object with a given hint.java.lang.Object[]getIds()Get an array of property ids.ScriptablegetPrototype()Get the prototype of the object.booleanhas(int index, Scriptable start)Indicates whether or not an indexed property is defined in an object.booleanhas(java.lang.String id, Scriptable start)Indicates whether or not a named property is defined in an object.booleanhas(Symbol key, Scriptable start)Return true if the specified property exists.inthashCode()booleanhasInstance(Scriptable value)The instanceof operator.voidput(int index, Scriptable start, java.lang.Object value)Sets an indexed property in this object.voidput(java.lang.String id, Scriptable start, java.lang.Object value)Sets a named property in this object.java.lang.Objectunwrap()Unwrap the object by returning the wrapped value.static NativeJavaArraywrap(Scriptable scope, java.lang.Object array)-
Methods inherited from class org.mozilla.javascript.NativeJavaObject
canConvert, coerceType, createInterfaceAdapter, delete, delete, getParentScope, initMembers, put, setParentScope, setPrototype, wrap
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.mozilla.javascript.SymbolScriptable
put
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Constructor Detail
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NativeJavaArray
public NativeJavaArray(Scriptable scope, java.lang.Object array)
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Method Detail
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getClassName
public java.lang.String getClassName()
Description copied from interface:ScriptableGet the name of the set of objects implemented by this Java class. This corresponds to the [[Class]] operation in ECMA and is used by Object.prototype.toString() in ECMA.See ECMA 8.6.2 and 15.2.4.2.
- Specified by:
getClassNamein interfaceScriptable- Overrides:
getClassNamein classNativeJavaObject
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wrap
public static NativeJavaArray wrap(Scriptable scope, java.lang.Object array)
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unwrap
public java.lang.Object unwrap()
Description copied from interface:WrapperUnwrap the object by returning the wrapped value.- Specified by:
unwrapin interfaceWrapper- Overrides:
unwrapin classNativeJavaObject- Returns:
- a wrapped value
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has
public boolean has(java.lang.String id, Scriptable start)Description copied from interface:ScriptableIndicates whether or not a named property is defined in an object.Does not traverse the prototype chain.
The property is specified by a String name as defined for the
getmethod.- Specified by:
hasin interfaceScriptable- Overrides:
hasin classNativeJavaObject- Parameters:
id- the name of the propertystart- the object in which the lookup began- Returns:
- true if and only if the named property is found in the object
- See Also:
Scriptable.get(String, Scriptable),ScriptableObject.getProperty(Scriptable, String)
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has
public boolean has(int index, Scriptable start)Description copied from interface:ScriptableIndicates whether or not an indexed property is defined in an object.Does not traverse the prototype chain.
The property is specified by an integral index as defined for the
getmethod.- Specified by:
hasin interfaceScriptable- Overrides:
hasin classNativeJavaObject- Parameters:
index- the numeric index for the propertystart- the object in which the lookup began- Returns:
- true if and only if the indexed property is found in the object
- See Also:
Scriptable.get(int, Scriptable),ScriptableObject.getProperty(Scriptable, int)
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has
public boolean has(Symbol key, Scriptable start)
Description copied from interface:SymbolScriptableReturn true if the specified property exists.- Specified by:
hasin interfaceSymbolScriptable- Overrides:
hasin classNativeJavaObject
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get
public java.lang.Object get(java.lang.String id, Scriptable start)Description copied from interface:ScriptableGet a named property from the object.Looks property up in this object and returns the associated value if found. Returns NOT_FOUND if not found. Note that this method is not expected to traverse the prototype chain. This is different from the ECMA [[Get]] operation.
Depending on the property selector, the runtime will call this method or the form of
getthat takes an integer:JavaScript code Java code a.b a.get("b", a) a["foo"] a.get("foo", a) a[3] a.get(3, a) a["3"] a.get(3, a) a[3.0] a.get(3, a) a["3.0"] a.get("3.0", a) a[1.1] a.get("1.1", a) a[-4] a.get(-4, a) The values that may be returned are limited to the following:
- java.lang.Boolean objects
- java.lang.String objects
- java.lang.Number objects
- org.mozilla.javascript.Scriptable objects
- null
- The value returned by Context.getUndefinedValue()
- NOT_FOUND
- Specified by:
getin interfaceScriptable- Overrides:
getin classNativeJavaObject- Parameters:
id- the name of the propertystart- the object in which the lookup began- Returns:
- the value of the property (may be null), or NOT_FOUND
- See Also:
Context.getUndefinedValue()
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get
public java.lang.Object get(int index, Scriptable start)Description copied from interface:ScriptableGet a property from the object selected by an integral index.Identical to
get(String, Scriptable)except that an integral index is used to select the property.- Specified by:
getin interfaceScriptable- Overrides:
getin classNativeJavaObject- Parameters:
index- the numeric index for the propertystart- the object in which the lookup began- Returns:
- the value of the property (may be null), or NOT_FOUND
- See Also:
Scriptable.get(String,Scriptable)
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get
public java.lang.Object get(Symbol key, Scriptable start)
Description copied from interface:SymbolScriptableReturn the value of the property with the specified key, or NOT_FOUND.- Specified by:
getin interfaceSymbolScriptable- Overrides:
getin classNativeJavaObject
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put
public void put(java.lang.String id, Scriptable start, java.lang.Object value)Description copied from interface:ScriptableSets a named property in this object.The property is specified by a string name as defined for
get.The possible values that may be passed in are as defined for
get. A class that implements this method may choose to ignore calls to set certain properties, in which case those properties are effectively read-only.For properties defined in a prototype chain, use
putPropertyin ScriptableObject.Note that if a property a is defined in the prototype p of an object o, then evaluating
o.a = 23will causesetto be called on the prototype p with o as the start parameter. To preserve JavaScript semantics, it is the Scriptable object's responsibility to modify o.This design allows properties to be defined in prototypes and implemented in terms of getters and setters of Java values without consuming slots in each instance.
The values that may be set are limited to the following:
- java.lang.Boolean objects
- java.lang.String objects
- java.lang.Number objects
- org.mozilla.javascript.Scriptable objects
- null
- The value returned by Context.getUndefinedValue()
Arbitrary Java objects may be wrapped in a Scriptable by first calling
Context.toObject. This allows the property of a JavaScript object to contain an arbitrary Java object as a value.Note that
haswill be called by the runtime first beforesetis called to determine in which object the property is defined. Note that this method is not expected to traverse the prototype chain, which is different from the ECMA [[Put]] operation.- Specified by:
putin interfaceScriptable- Overrides:
putin classNativeJavaObject- Parameters:
id- the name of the propertystart- the object whose property is being setvalue- 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)
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put
public void put(int index, Scriptable start, java.lang.Object value)Description copied from interface:ScriptableSets an indexed property in this object.The property is specified by an integral index as defined for
get.Identical to
put(String, Scriptable, Object)except that an integral index is used to select the property.- Specified by:
putin interfaceScriptable- Overrides:
putin classNativeJavaObject- Parameters:
index- the numeric index for the propertystart- the object whose property is being setvalue- value to set the property to- See Also:
Scriptable.has(int, Scriptable),Scriptable.get(int, Scriptable),ScriptableObject.putProperty(Scriptable, int, Object),Context.toObject(Object, Scriptable)
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delete
public void delete(Symbol key)
Description copied from interface:SymbolScriptableDelete a property with the specified key.- Specified by:
deletein interfaceSymbolScriptable- Overrides:
deletein classNativeJavaObject
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getDefaultValue
public java.lang.Object getDefaultValue(java.lang.Class<?> hint)
Description copied from interface:ScriptableGet the default value of the object with a given hint. The hints are String.class for type String, Number.class for type Number, Scriptable.class for type Object, and Boolean.class for type Boolean.A
hintof null means "no hint".See ECMA 8.6.2.6.
- Specified by:
getDefaultValuein interfaceScriptable- Overrides:
getDefaultValuein classNativeJavaObject- Parameters:
hint- the type hint- Returns:
- the default value
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getIds
public java.lang.Object[] getIds()
Description copied from interface:ScriptableGet an array of property ids.Not all property ids need be returned. Those properties whose ids are not returned are considered non-enumerable.
- Specified by:
getIdsin interfaceScriptable- Overrides:
getIdsin classNativeJavaObject- Returns:
- an array of Objects. Each entry in the array is either a java.lang.String or a java.lang.Number
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hasInstance
public boolean hasInstance(Scriptable value)
Description copied from interface:ScriptableThe instanceof operator.The JavaScript code "lhs instanceof rhs" causes rhs.hasInstance(lhs) to be called.
The return value is implementation dependent so that embedded host objects can return an appropriate value. See the JS 1.3 language documentation for more detail.
This operator corresponds to the proposed EMCA [[HasInstance]] operator.
- Specified by:
hasInstancein interfaceScriptable- Overrides:
hasInstancein classNativeJavaObject- Parameters:
value- The value that appeared on the LHS of the instanceof operator- Returns:
- an implementation dependent value
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getPrototype
public Scriptable getPrototype()
Description copied from interface:ScriptableGet the prototype of the object.- Specified by:
getPrototypein interfaceScriptable- Overrides:
getPrototypein classNativeJavaObject- Returns:
- the prototype
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equals
public boolean equals(java.lang.Object obj)
- Overrides:
equalsin classNativeJavaObject
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hashCode
public int hashCode()
- Overrides:
hashCodein classNativeJavaObject
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