org.netbeans.mdr.persistence.btreeimpl.btreestorage

Class TransactionCache

java.lang.Object

org.netbeans.mdr.persistence.btreeimpl.btreestorage.TransactionCache

public class TransactionCache
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	TransactionCache.CacheIterator
static class	TransactionCache.Record

Field Summary

Fields

Modifier and Type	Field and Description
static byte	OP_DELETE
static byte	OP_INSERT
static byte	OP_REPLACE

Constructor Summary

Constructors

Constructor and Description
TransactionCache()

Method Summary

Methods

Modifier and Type	Method and Description
void	addDeleted(MOFID id) adds one delete operation
void	addInserted(MOFID id, byte[] value) adds one insert operation
void	addReplaced(MOFID id, byte[] value) adds one replace operation
void	clear() Resets cache (to store no operations).
void	commit() Commits operations temporarly stored in @link #operations.
boolean	containsCommitedData()
TransactionCache.CacheIterator	iterator() Returns cache iterator.
boolean	tresholdReached()

Methods inherited from class java.lang.Object

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

Field Detail

OP_INSERT

public static final byte OP_INSERT

See Also:

Constant Field Values

OP_DELETE

public static final byte OP_DELETE

See Also:

Constant Field Values

OP_REPLACE

public static final byte OP_REPLACE

See Also:

Constant Field Values

Constructor Detail

TransactionCache

public TransactionCache()

Method Detail

tresholdReached

public boolean tresholdReached()

Returns:

true if transaction cache treshold has been reached

containsCommitedData

public boolean containsCommitedData()

Returns:

true if cache stores some commited operations

clear

public void clear()

Resets cache (to store no operations).

addInserted

public void addInserted(MOFID id,
               byte[] value)

adds one insert operation

addDeleted

public void addDeleted(MOFID id)

adds one delete operation

addReplaced

public void addReplaced(MOFID id,
               byte[] value)

adds one replace operation

commit

public void commit()

Commits operations temporarly stored in @link #operations.

iterator

public TransactionCache.CacheIterator iterator()

Returns cache iterator.