Class IIOByteBuffer

java.lang.Object

javax.imageio.stream.IIOByteBuffer

public class IIOByteBuffer extends Object

A class representing a mutable reference to an array of bytes and an offset and length within that array. IIOByteBuffer is used by ImageInputStream to supply a sequence of bytes to the caller, possibly with fewer copies than using the conventional read methods that take a user-supplied byte array.

The byte array referenced by an IIOByteBuffer will generally be part of an internal data structure belonging to an ImageReader implementation; its contents should be considered read-only and must not be modified.

Constructor Summary

Constructor	Description
`IIOByteBuffer(byte[] data, int offset, int length)`	Constructs an `IIOByteBuffer` that references a given byte array, offset, and length.

Method Summary

Modifier and Type	Method	Description
`byte[]`	`getData()`	Returns a reference to the byte array.
`int`	`getLength()`	Returns the length of the data of interest within the byte array returned by `getData`.
`int`	`getOffset()`	Returns the offset within the byte array returned by `getData` at which the data of interest start.
`void`	`setData(byte[] data)`	Updates the array reference that will be returned by subsequent calls to the `getData` method.
`void`	`setLength(int length)`	Updates the value that will be returned by subsequent calls to the `getLength` method.
`void`	`setOffset(int offset)`	Updates the value that will be returned by subsequent calls to the `getOffset` method.

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

IIOByteBuffer

public IIOByteBuffer(byte[] data, int offset, int length)

Constructs an IIOByteBuffer that references a given byte array, offset, and length.

Parameters:: data - a byte array.; offset - an int offset within the array.; length - an int specifying the length of the data of interest within byte array, in bytes.

Method Details

getData

public byte[] getData()

Returns a reference to the byte array. The returned value should be treated as read-only, and only the portion specified by the values of getOffset and getLength should be used.

Returns:

a byte array reference.

See Also:

setData

public void setData(byte[] data)

Updates the array reference that will be returned by subsequent calls to the getData method.

Parameters:

data - a byte array reference containing the new data value.

See Also:

getOffset

public int getOffset()

Returns the offset within the byte array returned by getData at which the data of interest start.

Returns:

an int offset.

See Also:

setOffset

public void setOffset(int offset)

Updates the value that will be returned by subsequent calls to the getOffset method.

Parameters:

offset - an int containing the new offset value.

See Also:

getLength

public int getLength()

Returns the length of the data of interest within the byte array returned by getData.

Returns:

an int length.

See Also:

setLength

public void setLength(int length)

Updates the value that will be returned by subsequent calls to the getLength method.

Parameters:

length - an int containing the new length value.

See Also:

© 1993, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.