org.apache.jackrabbit.core.persistence.util
Class ItemStateBinding

java.lang.Object
  org.apache.jackrabbit.core.persistence.util.ItemStateBinding

Direct Known Subclasses:

BundleBinding

public class ItemStateBinding
extends Object

This Class implements relatively efficient serialization methods for item states.

Field Summary

protected BLOBStore	blobStore the blob store
protected DataStore	dataStore Data store for binary properties.
protected ErrorHandling	errorHandling the error handling
protected long	minBlobSize minimum size of binaries to store in blob store
protected StringIndex	nameIndex the name index
protected StringIndex	nsIndex the namespace index
static int	VERSION_1 serialization version 1
static int	VERSION_2 serialization version 2
static int	VERSION_CURRENT current version

Constructor Summary

ItemStateBinding(ErrorHandling errorHandling, BLOBStore blobStore, StringIndex nsIndex, StringIndex nameIndex, DataStore dataStore)
Creates a new item state binding

Method Summary

BLOBStore	getBlobStore() Returns the blob store that is assosiated with this binding.
long	getMinBlobSize() Returns the minimum blob size
BigDecimal	readDecimal(DataInputStream in) Deserializes a BigDecimal
NodeId	readID(DataInputStream in) Deserializes a NodeID
Name	readIndexedQName(DataInputStream in) Deserializes an indexed Name
short	readModCount(DataInputStream in) Deserializes a mod-count
NodeId	readNodeId(DataInputStream in) Deserializes a node identifier
PropertyId	readPropertyId(DataInputStream in) Deserializes a PropertyId
Name	readQName(DataInputStream in) Deserializes a Name
NodeState	readState(DataInputStream in, NodeId id, PersistenceManager pMgr) Deserializes a NodeState from the data input stream.
void	setMinBlobSize(long minBlobSize) Sets the minimum blob size.
void	writeDecimal(DataOutputStream out, BigDecimal decimal) Serializes a BigDecimal
void	writeID(DataOutputStream out, NodeId id) Serializes a node id
void	writeIndexedQName(DataOutputStream out, Name name) Serializes a indexed Name
void	writeModCount(DataOutputStream out, short modCount) Sersializes a mod-count
void	writeNodeId(DataOutputStream out, String id) Serializes a node identifier
void	writePropertyId(DataOutputStream out, PropertyId id) Serializes a PropertyId
void	writeQName(DataOutputStream out, Name name) Serializes a Name
void	writeState(DataOutputStream out, NodeState state) Serializes a NodeState to the data output stream

Methods inherited from class java.lang.Object

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

Field Detail

VERSION_1

public static final int VERSION_1

serialization version 1

See Also:

Constant Field Values

VERSION_2

public static final int VERSION_2

serialization version 2

See Also:

Constant Field Values

VERSION_CURRENT

public static final int VERSION_CURRENT

current version

See Also:

Constant Field Values

nsIndex

protected final StringIndex nsIndex

the namespace index

nameIndex

protected final StringIndex nameIndex

the name index

blobStore

protected final BLOBStore blobStore

the blob store

minBlobSize

protected long minBlobSize

minimum size of binaries to store in blob store

errorHandling

protected final ErrorHandling errorHandling

the error handling

dataStore

protected final DataStore dataStore

Data store for binary properties.

Constructor Detail

ItemStateBinding

public ItemStateBinding(ErrorHandling errorHandling,
                        BLOBStore blobStore,
                        StringIndex nsIndex,
                        StringIndex nameIndex,
                        DataStore dataStore)

Creates a new item state binding

Parameters:

errorHandling - the error handing configuration

blobStore - the blobstore

nsIndex - the namespace index

nameIndex - the name index

dataStore - the data store

Method Detail

getMinBlobSize

public long getMinBlobSize()

Returns the minimum blob size

Returns:

the minimum blob size

See Also:

for details.

setMinBlobSize

public void setMinBlobSize(long minBlobSize)

Sets the minimum blob size. Binary values that are shorted than this given size will be inlined in the serialization stream, binary value that are longer, will be stored in the blob store. default is 4k.

Parameters:

minBlobSize - the minimum blob size.

getBlobStore

public BLOBStore getBlobStore()

Returns the blob store that is assosiated with this binding.

Returns:

the blob store

readState

public NodeState readState(DataInputStream in,
                           NodeId id,
                           PersistenceManager pMgr)
                    throws IOException

Deserializes a NodeState from the data input stream.

Parameters:

in - the input streaam

id - the id of the nodestate to read

pMgr - the persistence manager

Returns:

the node state

Throws:

IOException - in an I/O error occurs.

writeState

public void writeState(DataOutputStream out,
                       NodeState state)
                throws IOException

Serializes a NodeState to the data output stream

Parameters:

out - the output stream

state - the state to write

Throws:

IOException - in an I/O error occurs.

readNodeId

public NodeId readNodeId(DataInputStream in)
                  throws IOException

Deserializes a node identifier

Parameters:

in - the input stream

Returns:

the node id

Throws:

IOException - in an I/O error occurs.

writeNodeId

public void writeNodeId(DataOutputStream out,
                        String id)
                 throws IOException

Serializes a node identifier

Parameters:

out - the output stream

id - the node id

Throws:

IOException - in an I/O error occurs.

readDecimal

public BigDecimal readDecimal(DataInputStream in)
                       throws IOException

Deserializes a BigDecimal

Parameters:

in - the input stream

Returns:

the decimal

Throws:

IOException - in an I/O error occurs.

writeDecimal

public void writeDecimal(DataOutputStream out,
                         BigDecimal decimal)
                  throws IOException

Serializes a BigDecimal

Parameters:

out - the output stream

decimal - the decimal number

Throws:

IOException - in an I/O error occurs.

readID

public NodeId readID(DataInputStream in)
              throws IOException

Deserializes a NodeID

Parameters:

in - the input stream

Returns:

the uuid

Throws:

IOException - in an I/O error occurs.

writeID

public void writeID(DataOutputStream out,
                    NodeId id)
             throws IOException

Serializes a node id

Parameters:

out - the output stream

id - the id

Throws:

IOException - in an I/O error occurs.

readQName

public Name readQName(DataInputStream in)
               throws IOException

Deserializes a Name

Parameters:

in - the input stream

Returns:

the qname

Throws:

IOException - in an I/O error occurs.

readModCount

public short readModCount(DataInputStream in)
                   throws IOException

Deserializes a mod-count

Parameters:

in - the input stream

Returns:

the mod count

Throws:

IOException - in an I/O error occurs.

writeModCount

public void writeModCount(DataOutputStream out,
                          short modCount)
                   throws IOException

Sersializes a mod-count

Parameters:

out - the output stream

modCount - the mod count

Throws:

IOException - in an I/O error occurs.

writeQName

public void writeQName(DataOutputStream out,
                       Name name)
                throws IOException

Serializes a Name

Parameters:

out - the output stream

name - the name

Throws:

IOException - in an I/O error occurs.

readIndexedQName

public Name readIndexedQName(DataInputStream in)
                      throws IOException

Deserializes an indexed Name

Parameters:

in - the input stream

Returns:

the qname

Throws:

IOException - in an I/O error occurs.

writeIndexedQName

public void writeIndexedQName(DataOutputStream out,
                              Name name)
                       throws IOException

Serializes a indexed Name

Parameters:

out - the output stream

name - the name

Throws:

IOException - in an I/O error occurs.

writePropertyId

public void writePropertyId(DataOutputStream out,
                            PropertyId id)
                     throws IOException

Serializes a PropertyId

Parameters:

out - the output stream

id - the id

Throws:

IOException - in an I/O error occurs.

readPropertyId

public PropertyId readPropertyId(DataInputStream in)
                          throws IOException

Deserializes a PropertyId

Parameters:

in - the input stream

Returns:

the property id

Throws:

IOException - in an I/O error occurs.