ArrayBufferViewImpl (GWT Javadoc)

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## com.google.gwt.typedarrays.server
Class ArrayBufferViewImpl

    java.lang.Object
      com.google.gwt.typedarrays.server.ArrayBufferViewImpl

All Implemented Interfaces:
  ArrayBufferView

Direct Known Subclasses:
  DataViewImpl, Float32ArrayImpl, Float64ArrayImpl, Int16ArrayImpl, Int32ArrayImpl, Int8ArrayImpl, Uint16ArrayImpl, Uint32ArrayImpl, Uint8ArrayImpl

    public abstract class ArrayBufferViewImpl

extends java.lang.Object
implements ArrayBufferView

Base class for `ArrayBufferView` implementations.

Field Summary
`protected ArrayBufferImpl` | `arrayBuf`
`protected int` | `byteLength`
`protected int` | `byteOffset`
`(package private) static boolean` | `USE_LITTLE_ENDIAN` The spec lets the platform's native endianness come through, so we choose to expose little-endian regardless -- if apps care about the endianness but don't test for it, it is likely they assume little-endian.

Constructor Summary
`ArrayBufferViewImpl(ArrayBuffer buffer, int byteOffset, int byteLength)`

Method Summary
`ArrayBuffer` | `buffer()` Get the underlying `ArrayBuffer`.
`int` | `byteLength()` Get the length of this view in bytes.
`int` | `byteOffset()` Get the offset from the beginning of the underlying `ArrayBuffer`.
`protected int` | `checkRange(int index, int bytesPerElement)` Check the index range and throw an exception if out of range, if ok return the byte index of the specified element.

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

Field Detail

### USE_LITTLE_ENDIAN

    static final boolean USE_LITTLE_ENDIAN

  The spec lets the platform's native endianness come through, so we choose to expose little-endian regardless -- if apps care about the endianness but don't test for it, it is likely they assume little-endian.

  See Also:
    Constant Field Values

### arrayBuf

    protected final ArrayBufferImpl arrayBuf

### byteLength

    protected final int byteLength

### byteOffset

    protected final int byteOffset

Constructor Detail

### ArrayBufferViewImpl

    public ArrayBufferViewImpl(ArrayBuffer buffer,
                               int byteOffset,
                               int byteLength)

Parameters:
  `buffer` -
  `byteOffset` -
  `byteLength` -

Method Detail

### buffer

    public ArrayBuffer buffer()

  Description copied from interface: `ArrayBufferView`
  Get the underlying `ArrayBuffer`.

  Specified by:
    `buffer` in interface `ArrayBufferView`
  Returns:
    the `ArrayBuffer` instance backing this view

### byteLength

    public int byteLength()

  Description copied from interface: `ArrayBufferView`
  Get the length of this view in bytes.

  Specified by:
    `byteLength` in interface `ArrayBufferView`
  Returns:
    number of bytes in this view

### byteOffset

    public int byteOffset()

  Description copied from interface: `ArrayBufferView`
  Get the offset from the beginning of the underlying `ArrayBuffer`.

  Specified by:
    `byteOffset` in interface `ArrayBufferView`
  Returns:
    0-based offset from the beginning of `ArrayBufferView.buffer()`

### checkRange

    protected int checkRange(int index,
                             int bytesPerElement)

  Check the index range and throw an exception if out of range, if ok return the byte index of the specified element.

  Parameters:
    `index` - an element index
    `bytesPerElement` -
  Returns:
    the byte index of the start of this element

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