org.neo4j.kernel.ha
Interface Master

All Known Implementing Classes:

MasterClient, MasterImpl

public interface Master

Represents the master-side of the HA communication between master and slave. A master will receive calls to these methods from slaves when they do stuff.

Method Summary

Response<LockResult>	acquireNodeReadLock(SlaveContext context, long... nodes)
Response<LockResult>	acquireNodeWriteLock(SlaveContext context, long... nodes)
Response<LockResult>	acquireRelationshipReadLock(SlaveContext context, long... relationships)
Response<LockResult>	acquireRelationshipWriteLock(SlaveContext context, long... relationships)
Response<IdAllocation>	allocateIds(org.neo4j.kernel.IdType idType)
Response<Long>	commitSingleResourceTransaction(SlaveContext context, String resource, TxExtractor txGetter)
Response<Void>	copyStore(SlaveContext context, StoreWriter writer)
Response<Integer>	createRelationshipType(SlaveContext context, String name)
Response<Void>	finishTransaction(SlaveContext context, boolean success)
Response<org.neo4j.helpers.Pair<Integer,Long>>	getMasterIdForCommittedTx(long txId, org.neo4j.kernel.impl.nioneo.store.StoreId myStoreId) Gets the master id for a given txId, also a checksum for that tx.
Response<Void>	initializeTx(SlaveContext context) Called when the first write operation of lock is performed for a transaction.
Response<Void>	pullUpdates(SlaveContext context)
void	shutdown()

Method Detail

allocateIds

Response<IdAllocation> allocateIds(org.neo4j.kernel.IdType idType)

createRelationshipType

Response<Integer> createRelationshipType(SlaveContext context,
                                         String name)

initializeTx

Response<Void> initializeTx(SlaveContext context)

Called when the first write operation of lock is performed for a transaction.

acquireNodeWriteLock

Response<LockResult> acquireNodeWriteLock(SlaveContext context,
                                          long... nodes)

acquireNodeReadLock

Response<LockResult> acquireNodeReadLock(SlaveContext context,
                                         long... nodes)

acquireRelationshipWriteLock

Response<LockResult> acquireRelationshipWriteLock(SlaveContext context,
                                                  long... relationships)

acquireRelationshipReadLock

Response<LockResult> acquireRelationshipReadLock(SlaveContext context,
                                                 long... relationships)

commitSingleResourceTransaction

Response<Long> commitSingleResourceTransaction(SlaveContext context,
                                               String resource,
                                               TxExtractor txGetter)

finishTransaction

Response<Void> finishTransaction(SlaveContext context,
                                 boolean success)

pullUpdates

Response<Void> pullUpdates(SlaveContext context)

getMasterIdForCommittedTx

Response<org.neo4j.helpers.Pair<Integer,Long>> getMasterIdForCommittedTx(long txId,
                                                                         org.neo4j.kernel.impl.nioneo.store.StoreId myStoreId)

Gets the master id for a given txId, also a checksum for that tx.

Parameters:

txId - the transaction id to get the data for.

myStoreId - clients store id.

Returns:

the master id for a given txId, also a checksum for that tx.

copyStore

Response<Void> copyStore(SlaveContext context,
                         StoreWriter writer)

shutdown

void shutdown()