org.infinispan.io

Class ExpandableMarshalledValueByteStream

java.lang.Object

java.io.OutputStream

org.infinispan.io.MarshalledValueByteStream

org.infinispan.io.ExpandableMarshalledValueByteStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable, org.jboss.marshalling.ByteOutput

public final class ExpandableMarshalledValueByteStream
extends MarshalledValueByteStream

A byte stream that can be written to and expanded on the fly, not dissimilar to ExposedByteArrayOutputStream but with the benefit of not having to allocate unnecessary byte arrays by not extending ByteArrayOutputStream.

Since:

5.1

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_DOUBLING_SIZE Default buffer size after which if more buffer capacity is needed the buffer will grow by 25% rather than 100%

Constructor Summary

Constructors

Constructor and Description
ExpandableMarshalledValueByteStream()
ExpandableMarshalledValueByteStream(int size)
ExpandableMarshalledValueByteStream(int size, int maxDoublingSize) Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object thatObject)
int	getMaxDoublingSize() Gets the highest internal buffer size after which if more capacity is needed the buffer will grow in 25% increments rather than 100%.
int	getNewBufferSize(int curSize, int minNewSize) Gets the number of bytes to which the internal buffer should be resized.
byte[]	getRaw() Gets the internal buffer array.
int	hashCode()
int	size() Overriden only to avoid unneeded synchronization
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

close, flush, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jboss.marshalling.ByteOutput

write

Methods inherited from interface java.io.Closeable

close

Methods inherited from interface java.io.Flushable

flush

Field Detail

DEFAULT_DOUBLING_SIZE

public static final int DEFAULT_DOUBLING_SIZE

Default buffer size after which if more buffer capacity is needed the buffer will grow by 25% rather than 100%

See Also:

Constant Field Values

Constructor Detail

ExpandableMarshalledValueByteStream

public ExpandableMarshalledValueByteStream()

ExpandableMarshalledValueByteStream

public ExpandableMarshalledValueByteStream(int size)

ExpandableMarshalledValueByteStream

public ExpandableMarshalledValueByteStream(int size,
                                           int maxDoublingSize)

Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

Parameters:

size - the initial size.

maxDoublingSize - the buffer size, after which if more capacity is needed the buffer will grow by 25% rather than 100%

Throws:

java.lang.IllegalArgumentException - if size is negative.

Method Detail

getRaw

public final byte[] getRaw()

Gets the internal buffer array. Note that the length of this array will almost certainly be longer than the data written to it; call size() to get the number of bytes of actual data.

Specified by:

getRaw in class MarshalledValueByteStream

write

public final void write(byte[] b,
                        int off,
                        int len)

Specified by:

write in interface org.jboss.marshalling.ByteOutput

Overrides:

write in class java.io.OutputStream

write

public final void write(int b)

Specified by:

write in interface org.jboss.marshalling.ByteOutput

Specified by:

write in class java.io.OutputStream

getMaxDoublingSize

public final int getMaxDoublingSize()

Gets the highest internal buffer size after which if more capacity is needed the buffer will grow in 25% increments rather than 100%.

getNewBufferSize

public final int getNewBufferSize(int curSize,
                                  int minNewSize)

Gets the number of bytes to which the internal buffer should be resized.

Parameters:

curSize - the current number of bytes

minNewSize - the minimum number of bytes required

Returns:

the size to which the internal buffer should be resized

size

public final int size()

Overriden only to avoid unneeded synchronization

Specified by:

size in class MarshalledValueByteStream

equals

public boolean equals(java.lang.Object thatObject)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object