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Java Source Code / Java Documentation » 6.0 JDK Core » image » javax.imageio.stream

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

javax.imageio.stream .ImageInputStreamImpl

javax.imageio.stream .MemoryCacheImageInputStream

MemoryCacheImageInputStream
public class MemoryCacheImageInputStream extends ImageInputStreamImpl (Code)
	An implementation of `ImageInputStream` that gets its input from a regular `InputStream`. A memory buffer is used to cache at least the data between the discard position and the current read position. In general, it is preferable to use a `FileCacheImageInputStream` when reading from a regular `InputStream`. This class is provided for cases where it is not possible to create a writable temporary file. version: 0.5

Constructor Summary
public	MemoryCacheImageInputStream(InputStream stream) Constructs a `MemoryCacheImageInputStream` that will read from a given `InputStream`.

Method Summary
public void	close() Closes this `MemoryCacheImageInputStream`, freeing the cache.
protected void	finalize()
public void	flushBefore(long pos)
public boolean	isCached() Returns `true` since this `ImageInputStream` caches data in order to allow seeking backwards.
public boolean	isCachedFile() Returns `false` since this `ImageInputStream` does not maintain a file cache.
public boolean	isCachedMemory() Returns `true` since this `ImageInputStream` maintains a main memory cache.
public int	read()
public int	read(byte[] b, int off, int len)

Constructor Detail

MemoryCacheImageInputStream
public MemoryCacheImageInputStream(InputStream stream)(Code)
	Constructs a `MemoryCacheImageInputStream` that will read from a given `InputStream`. Parameters: stream - an `InputStream` to read from. exception: IllegalArgumentException - if `stream` is`null`.

Method Detail

close
public void close() throws IOException(Code)
	Closes this `MemoryCacheImageInputStream`, freeing the cache. The source `InputStream` is not closed.

finalize
protected void finalize() throws Throwable(Code)

flushBefore
public void flushBefore(long pos) throws IOException(Code)

isCached
public boolean isCached()(Code)
	Returns `true` since this `ImageInputStream` caches data in order to allow seeking backwards. `true`. See Also: MemoryCacheImageInputStream.isCachedMemory See Also: MemoryCacheImageInputStream.isCachedFile

isCachedFile
public boolean isCachedFile()(Code)
	Returns `false` since this `ImageInputStream` does not maintain a file cache. `false`. See Also: MemoryCacheImageInputStream.isCached See Also: MemoryCacheImageInputStream.isCachedMemory

isCachedMemory
public boolean isCachedMemory()(Code)
	Returns `true` since this `ImageInputStream` maintains a main memory cache. `true`. See Also: MemoryCacheImageInputStream.isCached See Also: MemoryCacheImageInputStream.isCachedFile

read
public int read() throws IOException(Code)

read
public int read(byte[] b, int off, int len) throws IOException(Code)

Fields inherited from javax.imageio.stream.ImageInputStreamImpl

protected int bitOffset(Code)(Java Doc)
byte[] byteBuf(Code)(Java Doc)
protected ByteOrder byteOrder(Code)(Java Doc)
protected long flushedPos(Code)(Java Doc)
protected long streamPos(Code)(Java Doc)

Methods inherited from javax.imageio.stream.ImageInputStreamImpl

final protected void checkClosed() throws IOException(Code)(Java Doc)
public void close() throws IOException(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
public void flush() throws IOException(Code)(Java Doc)
public void flushBefore(long pos) throws IOException(Code)(Java Doc)
public int getBitOffset() throws IOException(Code)(Java Doc)
public ByteOrder getByteOrder()(Code)(Java Doc)
public long getFlushedPosition()(Code)(Java Doc)
public long getStreamPosition() throws IOException(Code)(Java Doc)
public boolean isCached()(Code)(Java Doc)
public boolean isCachedFile()(Code)(Java Doc)
public boolean isCachedMemory()(Code)(Java Doc)
public long length()(Code)(Java Doc)
public void mark()(Code)(Java Doc)
abstract public int read() throws IOException(Code)(Java Doc)
public int read(byte[] b) throws IOException(Code)(Java Doc)
abstract public int read(byte[] b, int off, int len) throws IOException(Code)(Java Doc)
public int readBit() throws IOException(Code)(Java Doc)
public long readBits(int numBits) throws IOException(Code)(Java Doc)
public boolean readBoolean() throws IOException(Code)(Java Doc)
public byte readByte() throws IOException(Code)(Java Doc)
public void readBytes(IIOByteBuffer buf, int len) throws IOException(Code)(Java Doc)
public char readChar() throws IOException(Code)(Java Doc)
public double readDouble() throws IOException(Code)(Java Doc)
public float readFloat() throws IOException(Code)(Java Doc)
public void readFully(byte[] b, int off, int len) throws IOException(Code)(Java Doc)
public void readFully(byte[] b) throws IOException(Code)(Java Doc)
public void readFully(short[] s, int off, int len) throws IOException(Code)(Java Doc)
public void readFully(char[] c, int off, int len) throws IOException(Code)(Java Doc)
public void readFully(int[] i, int off, int len) throws IOException(Code)(Java Doc)
public void readFully(long[] l, int off, int len) throws IOException(Code)(Java Doc)
public void readFully(float[] f, int off, int len) throws IOException(Code)(Java Doc)
public void readFully(double[] d, int off, int len) throws IOException(Code)(Java Doc)
public int readInt() throws IOException(Code)(Java Doc)
public String readLine() throws IOException(Code)(Java Doc)
public long readLong() throws IOException(Code)(Java Doc)
public short readShort() throws IOException(Code)(Java Doc)
public String readUTF() throws IOException(Code)(Java Doc)
public int readUnsignedByte() throws IOException(Code)(Java Doc)
public long readUnsignedInt() throws IOException(Code)(Java Doc)
public int readUnsignedShort() throws IOException(Code)(Java Doc)
public void reset() throws IOException(Code)(Java Doc)
public void seek(long pos) throws IOException(Code)(Java Doc)
public void setBitOffset(int bitOffset) throws IOException(Code)(Java Doc)
public void setByteOrder(ByteOrder byteOrder)(Code)(Java Doc)
public int skipBytes(int n) throws IOException(Code)(Java Doc)
public long skipBytes(long n) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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