MemoryCacheImageInputStream (Java Platform SE 6)

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javax.imageio.stream
class MemoryCacheImageInputStream

java.lang.Object
  javax.imageio.stream.ImageInputStreamImpl
      javax.imageio.stream.MemoryCacheImageInputStream

All Implemented Interfaces:: ImageInputStream

Most common way to construct:

ByteArrayInputStream inputByteStream = …;

MemoryCacheImageInputStream imageInStream = new MemoryCacheImageInputStream(inputByteStream);

Based on 8 examples

public class MemoryCacheImageInputStream
extends ImageInputStreamImpl

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.

Field Summary

Fields inherited from class javax.imageio.stream.ImageInputStreamImpl
`bitOffset, byteOrder, flushedPos, streamPos`

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

Method Summary
`void`	`close()` Closes this `MemoryCacheImageInputStream`, freeing the cache.
`protected void`	`finalize()` Finalizes this object prior to garbage collection.
`void`	`flushBefore(long pos)`
`boolean`	`isCached()` Returns `true` since this `ImageInputStream` caches data in order to allow seeking backwards.
`boolean`	`isCachedFile()` Returns `false` since this `ImageInputStream` does not maintain a file cache.
`boolean`	`isCachedMemory()` Returns `true` since this `ImageInputStream` maintains a main memory cache.
`int`	`read()` Reads a single byte from the stream and returns it as an `int` between 0 and 255.
`int`	`read(byte[] b, int off, int len)` Reads a single byte from the stream and returns it as an `int` between 0 and 255.

Methods inherited from class javax.imageio.stream.ImageInputStreamImpl
checkClosed, close, finalize, flush, flushBefore, getBitOffset, getByteOrder, getFlushedPosition, getStreamPosition, isCached, isCachedFile, isCachedMemory, length, mark, read, read, read, readBit, readBits, readBoolean, readByte, readBytes, readChar, readDouble, readFloat, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF, reset, seek, setBitOffset, setByteOrder, skipBytes, skipBytes

Methods inherited from class javax.imageio.stream.ImageInputStreamImpl


checkClosed, close, finalize, flush, flushBefore, getBitOffset, getByteOrder, getFlushedPosition, getStreamPosition, isCached, isCachedFile, isCachedMemory, length, mark, read, read, read, readBit, readBits, readBoolean, readByte, readBytes, readChar, readDouble, readFloat, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF, reset, seek, setBitOffset, setByteOrder, skipBytes, skipBytes

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

Constructor Detail