org.jboss.cache.invocation

Class MVCCInvocationContext

java.lang.Object

org.jboss.cache.InvocationContext

org.jboss.cache.invocation.MVCCInvocationContext

public class MVCCInvocationContext
extends InvocationContext

An invocation context that is specific to MVCC locking

Since:

3.0

Author:

Manik Surtani (manik AT jboss DOT org)

Field Summary

Fields inherited from class org.jboss.cache.InvocationContext

invocationLocks, transactionContext

Constructor Summary

Constructors

Constructor and Description
MVCCInvocationContext()

Method Summary

Methods

Modifier and Type	Method and Description
void	clearLookedUpNodes() Clears the registry of looked up nodes.
InvocationContext	copy() This is a "copy-factory-method" that should be used whenever a clone of this class is needed.
Map<Fqn,NodeSPI>	getLookedUpNodes() Retrieves a map of nodes looked up within the current invocation's scope.
NodeSPI	lookUpNode(Fqn fqn) Retrieves a node from the registry of looked up nodes in the current scope.
void	putLookedUpNode(Fqn f, NodeSPI n) Puts an entry in the registry of looked up nodes in the current scope.
void	putLookedUpNodes(Map<Fqn,NodeSPI> lookedUpNodes) Adds a map of looked up nodes to the current map of looked up nodes
void	reset() Resets the context, freeing up any references.
void	setTransactionContext(TransactionContext transactionContext) Sets the transaction context to be associated with the current thread.

Methods inherited from class org.jboss.cache.InvocationContext

addAllLocks, addFqnLoaded, addLock, clearLocks, doCopy, equals, getCommand, getFqnsLoaded, getGlobalTransaction, getLockAcquisitionTimeout, getLocks, getMethodCall, getOptionOverrides, getTransaction, getTransactionContext, hashCode, hasLock, isBypassUnmarshalling, isLocalRollbackOnly, isLockingSuppressed, isOptionsUninitialised, isOriginLocal, isValidTransaction, removeLock, setBypassUnmarshalling, setCommand, setFqnsLoaded, setGlobalTransaction, setLocalRollbackOnly, setMethodCall, setOptionOverrides, setOriginLocal, setState, setTransaction, throwIfNeeded, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MVCCInvocationContext

public MVCCInvocationContext()

Method Detail

setTransactionContext

public void setTransactionContext(TransactionContext transactionContext)

Description copied from class: InvocationContext

Sets the transaction context to be associated with the current thread.

Overrides:

setTransactionContext in class InvocationContext

Parameters:

transactionContext - transaction context to set

lookUpNode

public NodeSPI lookUpNode(Fqn fqn)

Retrieves a node from the registry of looked up nodes in the current scope.

If a transaction is in progress, implementations should delegate to MVCCTransactionContext.lookUpNode(Fqn)

Specified by:

lookUpNode in class InvocationContext

Parameters:

fqn - fqn to look up

Returns:

a node, or null if it cannot be found.

putLookedUpNode

public void putLookedUpNode(Fqn f,
                   NodeSPI n)

Puts an entry in the registry of looked up nodes in the current scope.

If a transaction is in progress, implementations should delegate to MVCCTransactionContext.putLookedUpNode(Fqn, NodeSPI)

Specified by:

putLookedUpNode in class InvocationContext

Parameters:

f - fqn to add

n - node to add

putLookedUpNodes

public void putLookedUpNodes(Map<Fqn,NodeSPI> lookedUpNodes)

Description copied from class: InvocationContext

Adds a map of looked up nodes to the current map of looked up nodes

Specified by:

putLookedUpNodes in class InvocationContext

Parameters:

lookedUpNodes - looked up nodes to add

clearLookedUpNodes

public void clearLookedUpNodes()

Clears the registry of looked up nodes.

If a transaction is in progress, implementations should delegate to MVCCTransactionContext.clearLookedUpNodes().

Specified by:

clearLookedUpNodes in class InvocationContext

getLookedUpNodes

public Map<Fqn,NodeSPI> getLookedUpNodes()

Retrieves a map of nodes looked up within the current invocation's scope.

If a transaction is in progress, implementations should delegate to MVCCTransactionContext.getLookedUpNodes().

Specified by:

getLookedUpNodes in class InvocationContext

Returns:

a map of looked up nodes.

reset

public void reset()

Description copied from class: InvocationContext

Resets the context, freeing up any references.

Overrides:

reset in class InvocationContext

copy

public InvocationContext copy()

Description copied from class: InvocationContext

This is a "copy-factory-method" that should be used whenever a clone of this class is needed. The resulting instance is equal() to, but not ==, to the InvocationContext invoked on. Note that this is a shallow copy with the exception of the Option object, which is deep, as well as any collections held on the context such as locks. Note that the reference to a TransactionContext, if any, is maintained.

Specified by:

copy in class InvocationContext

Returns:

a new InvocationContext