java.lang.Object
- org.htmlunit.corejs.javascript.ScriptableObject
- - org.htmlunit.corejs.javascript.IdScriptableObject
  - - org.htmlunit.corejs.javascript.typedarrays.NativeArrayBuffer

All Implemented Interfaces:

java.io.Serializable, ConstProperties, DebuggableObject, IdFunctionCall, Scriptable, SymbolScriptable
```
public class NativeArrayBuffer
extends IdScriptableObject
```
A NativeArrayBuffer is the backing buffer for a typed array. Used inside JavaScript code, it implements the ArrayBuffer interface. Used directly from Java, it simply holds a byte array.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.ScriptableObject
  ScriptableObject.KeyComparator

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) byte[]`	`buffer`
`static java.lang.String`	`CLASS_NAME`
`private static int`	`ConstructorId_isView`
`private static byte[]`	`EMPTY_BUF`
`private static int`	`Id_byteLength`
`private static int`	`Id_constructor`
`private static int`	`Id_slice`
`private static int`	`MAX_INSTANCE_ID`
`private static int`	`MAX_PROTOTYPE_ID`
`private static long`	`serialVersionUID`

Fields inherited from class org.htmlunit.corejs.javascript.ScriptableObject
CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface org.htmlunit.corejs.javascript.Scriptable
NOT_FOUND

Constructor Summary

Constructors
Constructor Description

NativeArrayBuffer()
Create an empty buffer.

NativeArrayBuffer(double len)
Create a buffer of the specified length in bytes.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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 void`	`fillConstructorProperties(IdFunctionObject ctor)`
`protected int`	`findInstanceIdInfo(java.lang.String s)`	Map name to id of instance property.
`protected int`	`findPrototypeId(java.lang.String s)`
`byte[]`	`getBuffer()`	Return the actual bytes that back the buffer.
`java.lang.String`	`getClassName()`	Return the name of the class.
`protected java.lang.String`	`getInstanceIdName(int id)`	Map id back to property name it defines.
`protected java.lang.Object`	`getInstanceIdValue(int id)`	Get id value.
`int`	`getLength()`	Get the number of bytes in the buffer.
`protected int`	`getMaxInstanceId()`	Get maximum id findInstanceIdInfo can generate.
`static void`	`init(Context cx, Scriptable scope, boolean sealed)`
`protected void`	`initPrototypeId(int id)`
`private static boolean`	`isArg(java.lang.Object[] args, int i)`
`private static NativeArrayBuffer`	`realThis(Scriptable thisObj, IdFunctionObject f)`
`NativeArrayBuffer`	`slice(double s, double e)`	Return a new buffer that represents a slice of this buffer's content, starting at position "start" and ending at position "end".

Methods inherited from class org.htmlunit.corejs.javascript.IdScriptableObject
activatePrototypeMap, addIdFunctionProperty, defaultGet, defaultHas, defaultPut, defineOwnProperty, delete, delete, ensureType, exportAsJSClass, findInstanceIdInfo, findPrototypeId, get, get, getAttributes, getAttributes, getOwnPropertyDescriptor, has, has, hasPrototypeMap, initPrototypeConstructor, initPrototypeMethod, initPrototypeMethod, initPrototypeMethod, initPrototypeValue, initPrototypeValue, instanceIdInfo, put, put, setAttributes, setInstanceIdAttributes, setInstanceIdValue

Methods inherited from class org.htmlunit.corejs.javascript.ScriptableObject
applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, deleteProperty, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, equivalentValues, get, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getIds, getObjectPrototype, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, hasInstance, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, putConst, putConstProperty, putProperty, putProperty, putProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype, size

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - CLASS_NAME
```
public static final java.lang.String CLASS_NAME
```
    See Also:
    
    Constant Field Values
  - EMPTY_BUF
```
private static final byte[] EMPTY_BUF
```
  - buffer
```
final byte[] buffer
```
  - Id_constructor
```
private static final int Id_constructor
```
    See Also:
    
    Constant Field Values
  - Id_slice
```
private static final int Id_slice
```
    See Also:
    
    Constant Field Values
  - MAX_PROTOTYPE_ID
```
private static final int MAX_PROTOTYPE_ID
```
    See Also:
    
    Constant Field Values
  - ConstructorId_isView
```
private static final int ConstructorId_isView
```
    See Also:
    
    Constant Field Values
  - Id_byteLength
```
private static final int Id_byteLength
```
    See Also:
    
    Constant Field Values
  - MAX_INSTANCE_ID
```
private static final int MAX_INSTANCE_ID
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - NativeArrayBuffer
```
public NativeArrayBuffer()
```
    Create an empty buffer.
  - NativeArrayBuffer
```
public NativeArrayBuffer(double len)
```
    Create a buffer of the specified length in bytes.
- 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
    
    Specified by:
    
    getClassName in class ScriptableObject
  - init
```
public static void init(Context cx,
                        Scriptable scope,
                        boolean sealed)
```
  - getLength
```
public int getLength()
```
    Get the number of bytes in the buffer.
  - getBuffer
```
public byte[] getBuffer()
```
    Return the actual bytes that back the buffer. This is a reference to the real buffer, so changes to bytes here will be reflected in the actual object and all its views.
  - slice
```
public NativeArrayBuffer slice(double s,
                               double e)
```
    Return a new buffer that represents a slice of this buffer's content, starting at position "start" and ending at position "end". Both values will be "clamped" as per the JavaScript spec so that invalid values may be passed and will be adjusted up or down accordingly. This method will return a new buffer that contains a copy of the original buffer. Changes there will not affect the content of the buffer.
    
    Parameters:
    
    s - the position where the new buffer will start
    
    e - the position where it will end
  - 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
  - realThis
```
private static NativeArrayBuffer realThis(Scriptable thisObj,
                                          IdFunctionObject f)
```
  - isArg
```
private static boolean isArg(java.lang.Object[] args,
                             int i)
```
  - initPrototypeId
```
protected void initPrototypeId(int id)
```
    Overrides:
    
    initPrototypeId in class IdScriptableObject
  - findPrototypeId
```
protected int findPrototypeId(java.lang.String s)
```
    Overrides:
    
    findPrototypeId in class IdScriptableObject
  - fillConstructorProperties
```
protected void fillConstructorProperties(IdFunctionObject ctor)
```
    Overrides:
    
    fillConstructorProperties in class IdScriptableObject
  - getMaxInstanceId
```
protected int getMaxInstanceId()
```
    Description copied from class: IdScriptableObject
    
    Get maximum id findInstanceIdInfo can generate.
    
    Overrides:
    
    getMaxInstanceId in class IdScriptableObject
  - getInstanceIdName
```
protected java.lang.String getInstanceIdName(int id)
```
    Description copied from class: IdScriptableObject
    
    Map id back to property name it defines.
    
    Overrides:
    
    getInstanceIdName in class IdScriptableObject
  - getInstanceIdValue
```
protected java.lang.Object getInstanceIdValue(int id)
```
    Description copied from class: IdScriptableObject
    
    Get id value. * If id value is constant, descendant can call cacheIdValue to store * value in the permanent cache. * Default implementation creates IdFunctionObject instance for given id * and cache its value
    
    Overrides:
    
    getInstanceIdValue in class IdScriptableObject
  - findInstanceIdInfo
```
protected int findInstanceIdInfo(java.lang.String s)
```
    Description copied from class: IdScriptableObject
    
    Map name to id of instance property. Should return 0 if not found or the result of IdScriptableObject.instanceIdInfo(int, int).
    
    Overrides:
    
    findInstanceIdInfo in class IdScriptableObject

Constructor	Description
`NativeArrayBuffer()`	Create an empty buffer.
`NativeArrayBuffer(double len)`	Create a buffer of the specified length in bytes.

Class NativeArrayBuffer

Nested Class Summary

Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.ScriptableObject

Field Summary

Fields inherited from class org.htmlunit.corejs.javascript.ScriptableObject

Fields inherited from interface org.htmlunit.corejs.javascript.Scriptable

Constructor Summary

Method Summary

Methods inherited from class org.htmlunit.corejs.javascript.IdScriptableObject

Methods inherited from class org.htmlunit.corejs.javascript.ScriptableObject

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

CLASS_NAME

EMPTY_BUF

buffer

Id_constructor

Id_slice

MAX_PROTOTYPE_ID

ConstructorId_isView

Id_byteLength

MAX_INSTANCE_ID

Constructor Detail

NativeArrayBuffer

NativeArrayBuffer

Method Detail

getClassName

init

getLength

getBuffer

slice

execIdCall

realThis

isArg

initPrototypeId

findPrototypeId

fillConstructorProperties

getMaxInstanceId

getInstanceIdName

getInstanceIdValue

findInstanceIdInfo