com.sleepycat.je.rep.impl

Class PointConsistencyPolicy

java.lang.Object

com.sleepycat.je.rep.impl.PointConsistencyPolicy

All Implemented Interfaces:

ReplicaConsistencyPolicy

public class PointConsistencyPolicy
extends java.lang.Object
implements ReplicaConsistencyPolicy

This is used to ensure that the Replica has finished replaying or proceeded past the vlsn specified by the policy. It's like the externally visible CommitPointConsistencyPolicy, except that the latter restricts consistency points to commit vlsns, whereas this policy lets you sync at uncommitted log entries.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NAME The name:"PointConsistencyPolicy" associated with this policy.

Constructor Summary

Constructors

Constructor and Description
PointConsistencyPolicy(VLSN targetVLSN)
PointConsistencyPolicy(VLSN targetVLSN, long timeout, java.util.concurrent.TimeUnit timeoutUnit)

Method Summary

Methods

Modifier and Type	Method and Description
void	ensureConsistency(EnvironmentImpl replicatorImpl) Ensures that the replica has replayed the replication stream to the point identified by the commit token.
boolean	equals(java.lang.Object obj)
java.lang.String	getName() Returns the name:"PointConsistencyPolicy", associated with this policy.
long	getTimeout(java.util.concurrent.TimeUnit unit) The timeout associated with the consistency policy.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final java.lang.String NAME

The name:"PointConsistencyPolicy" associated with this policy. The name can be used when constructing policy property values for use in je.properties files.

See Also:

Constant Field Values

Constructor Detail

PointConsistencyPolicy

public PointConsistencyPolicy(VLSN targetVLSN)

PointConsistencyPolicy

public PointConsistencyPolicy(VLSN targetVLSN,
                      long timeout,
                      java.util.concurrent.TimeUnit timeoutUnit)

Method Detail

getName

public java.lang.String getName()

Returns the name:"PointConsistencyPolicy", associated with this policy.

Specified by:

getName in interface ReplicaConsistencyPolicy

See Also:

NAME

ensureConsistency

public void ensureConsistency(EnvironmentImpl replicatorImpl)
                       throws java.lang.InterruptedException,
                              ReplicaConsistencyException,
                              DatabaseException

Ensures that the replica has replayed the replication stream to the point identified by the commit token. If it isn't the method waits until the constraint is satisfied by the replica.

Specified by:

ensureConsistency in interface ReplicaConsistencyPolicy

Parameters:

replicatorImpl - identifies the replicated environment that must meet this consistency requirement.

Throws:

java.lang.InterruptedException

ReplicaConsistencyException

DatabaseException

getTimeout

public long getTimeout(java.util.concurrent.TimeUnit unit)

Description copied from interface: ReplicaConsistencyPolicy

The timeout associated with the consistency policy. If consistency cannot be established by the Replica within the timeout period, a ReplicaConsistencyException is thrown by Environment.beginTransaction(com.sleepycat.je.Transaction, com.sleepycat.je.TransactionConfig).

Specified by:

getTimeout in interface ReplicaConsistencyPolicy

Returns:

the timeout associated with the policy

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object