org.neo4j.kernel.ha.com.master

Interface Master

All Known Subinterfaces:

MasterClient

All Known Implementing Classes:

MasterClient214, MasterClient310, 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

Modifier and Type	Method and Description
org.neo4j.com.Response<LockResult>	acquireExclusiveLock(org.neo4j.com.RequestContext context, org.neo4j.storageengine.api.lock.ResourceType type, long... resourceIds)
org.neo4j.com.Response<LockResult>	acquireSharedLock(org.neo4j.com.RequestContext context, org.neo4j.storageengine.api.lock.ResourceType type, long... resourceIds)
org.neo4j.com.Response<IdAllocation>	allocateIds(org.neo4j.com.RequestContext context, org.neo4j.kernel.impl.store.id.IdType idType)
org.neo4j.com.Response<Long>	commit(org.neo4j.com.RequestContext context, org.neo4j.kernel.impl.transaction.TransactionRepresentation channel) Calling this method will validate, persist to log and apply changes to stores on the master.
org.neo4j.com.Response<Void>	copyStore(org.neo4j.com.RequestContext context, org.neo4j.com.storecopy.StoreWriter writer)
org.neo4j.com.Response<Integer>	createLabel(org.neo4j.com.RequestContext context, String name)
org.neo4j.com.Response<Integer>	createPropertyKey(org.neo4j.com.RequestContext context, String name)
org.neo4j.com.Response<Integer>	createRelationshipType(org.neo4j.com.RequestContext context, String name)
org.neo4j.com.Response<Void>	endLockSession(org.neo4j.com.RequestContext context, boolean success) Calling this will end the current lock session (identified by the RequestContext), releasing all cluster-global locks held.
org.neo4j.com.Response<HandshakeResult>	handshake(long txId, org.neo4j.kernel.impl.store.StoreId myStoreId) Gets the master id for a given txId, also a checksum for that tx.
org.neo4j.com.Response<Void>	newLockSession(org.neo4j.com.RequestContext context) Calling this method will create a new session with the cluster lock manager and associate that session with the provided RequestContext.
org.neo4j.com.Response<Void>	pullUpdates(org.neo4j.com.RequestContext context)

Method Detail

allocateIds

org.neo4j.com.Response<IdAllocation> allocateIds(org.neo4j.com.RequestContext context,
                                                 org.neo4j.kernel.impl.store.id.IdType idType)

createRelationshipType

org.neo4j.com.Response<Integer> createRelationshipType(org.neo4j.com.RequestContext context,
                                                       String name)

createPropertyKey

org.neo4j.com.Response<Integer> createPropertyKey(org.neo4j.com.RequestContext context,
                                                  String name)

createLabel

org.neo4j.com.Response<Integer> createLabel(org.neo4j.com.RequestContext context,
                                            String name)

commit

org.neo4j.com.Response<Long> commit(org.neo4j.com.RequestContext context,
                                    org.neo4j.kernel.impl.transaction.TransactionRepresentation channel)
                             throws IOException,
                                    org.neo4j.kernel.api.exceptions.TransactionFailureException

Calling this method will validate, persist to log and apply changes to stores on the master.

Throws:

IOException

org.neo4j.kernel.api.exceptions.TransactionFailureException

newLockSession

org.neo4j.com.Response<Void> newLockSession(org.neo4j.com.RequestContext context)
                                     throws org.neo4j.kernel.api.exceptions.TransactionFailureException

Calling this method will create a new session with the cluster lock manager and associate that session with the provided RequestContext.

Throws:

org.neo4j.kernel.api.exceptions.TransactionFailureException

endLockSession

org.neo4j.com.Response<Void> endLockSession(org.neo4j.com.RequestContext context,
                                            boolean success)

Calling this will end the current lock session (identified by the RequestContext), releasing all cluster-global locks held.

handshake

org.neo4j.com.Response<HandshakeResult> handshake(long txId,
                                                  org.neo4j.kernel.impl.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.

pullUpdates

org.neo4j.com.Response<Void> pullUpdates(org.neo4j.com.RequestContext context)

copyStore

org.neo4j.com.Response<Void> copyStore(org.neo4j.com.RequestContext context,
                                       org.neo4j.com.storecopy.StoreWriter writer)

acquireExclusiveLock

org.neo4j.com.Response<LockResult> acquireExclusiveLock(org.neo4j.com.RequestContext context,
                                                        org.neo4j.storageengine.api.lock.ResourceType type,
                                                        long... resourceIds)

acquireSharedLock

org.neo4j.com.Response<LockResult> acquireSharedLock(org.neo4j.com.RequestContext context,
                                                     org.neo4j.storageengine.api.lock.ResourceType type,
                                                     long... resourceIds)