- java.lang.Object
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- javax.imageio.stream.ImageInputStreamImpl
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- javax.imageio.stream.ImageOutputStreamImpl
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- javax.imageio.stream.MemoryCacheImageOutputStream
 
 
 
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- All Implemented Interfaces:
- Closeable,- DataInput,- DataOutput,- AutoCloseable,- ImageInputStream,- ImageOutputStream
 
 public class MemoryCacheImageOutputStream extends ImageOutputStreamImpl An implementation ofImageOutputStreamthat writes its output to a regularOutputStream. A memory buffer is used to cache at least the data between the discard position and the current write position. The only constructor takes anOutputStream, so this class may not be used for read/modify/write operations. Reading can occur only on parts of the stream that have already been written to the cache and not yet flushed.
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Field Summary- 
Fields declared in class javax.imageio.stream.ImageInputStreamImplbitOffset, byteOrder, flushedPos, streamPos
 
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Constructor SummaryConstructors Constructor Description MemoryCacheImageOutputStream(OutputStream stream)Constructs aMemoryCacheImageOutputStreamthat will write to a givenOutputStream.
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description voidclose()Closes thisMemoryCacheImageOutputStream.booleanisCached()Returnstruesince thisImageOutputStreamcaches data in order to allow seeking backwards.booleanisCachedFile()Returnsfalsesince thisImageOutputStreamdoes not maintain a file cache.booleanisCachedMemory()Returnstruesince thisImageOutputStreammaintains a main memory cache.- 
Methods declared in class javax.imageio.stream.ImageOutputStreamImplflushBits
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Methods declared in class javax.imageio.stream.ImageInputStreamImplcheckClosed, finalize, length, mark, read, read, read, reset, skipBytes, skipBytes
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Methods declared in class java.lang.Objectclone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods declared in interface javax.imageio.stream.ImageInputStreamflush, getBitOffset, getByteOrder, getFlushedPosition, getStreamPosition, 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
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Methods declared in interface javax.imageio.stream.ImageOutputStreamflushBefore, write, write, write, writeBit, writeBits, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeChars, writeDouble, writeDoubles, writeFloat, writeFloats, writeInt, writeInts, writeLong, writeLongs, writeShort, writeShorts, writeUTF
 
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Constructor Detail- 
MemoryCacheImageOutputStreampublic MemoryCacheImageOutputStream(OutputStream stream) Constructs aMemoryCacheImageOutputStreamthat will write to a givenOutputStream.- Parameters:
- stream- an- OutputStreamto write to.
- Throws:
- IllegalArgumentException- if- streamis- null.
 
 
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Method Detail- 
isCachedpublic boolean isCached() Returnstruesince thisImageOutputStreamcaches data in order to allow seeking backwards.- Specified by:
- isCachedin interface- ImageInputStream
- Overrides:
- isCachedin class- ImageInputStreamImpl
- Returns:
- true.
- See Also:
- isCachedMemory(),- isCachedFile()
 
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isCachedFilepublic boolean isCachedFile() Returnsfalsesince thisImageOutputStreamdoes not maintain a file cache.- Specified by:
- isCachedFilein interface- ImageInputStream
- Overrides:
- isCachedFilein class- ImageInputStreamImpl
- Returns:
- false.
- See Also:
- isCached(),- isCachedMemory()
 
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isCachedMemorypublic boolean isCachedMemory() Returnstruesince thisImageOutputStreammaintains a main memory cache.- Specified by:
- isCachedMemoryin interface- ImageInputStream
- Overrides:
- isCachedMemoryin class- ImageInputStreamImpl
- Returns:
- true.
- See Also:
- isCached(),- isCachedFile()
 
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closepublic void close() throws IOExceptionCloses thisMemoryCacheImageOutputStream. All pending data is flushed to the output, and the cache is released. The destinationOutputStreamis not closed.- Throws:
- IOException- if an I/O error occurs.
 
 
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