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java.lang.Objectorg.apache.derby.impl.store.raw.xact.NoLocking
org.apache.derby.impl.store.raw.xact.ContainerLocking3
public class ContainerLocking3
A locking policy that implements container level locking with isolation degree 3.
LockingPolicy
Field Summary | |
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protected LockFactory |
lf
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Fields inherited from interface org.apache.derby.iapi.store.raw.LockingPolicy |
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MODE_CONTAINER, MODE_NONE, MODE_RECORD |
Constructor Summary | |
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protected |
ContainerLocking3(LockFactory lf)
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Method Summary | |
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int |
getMode()
Get the mode of this policy |
boolean |
lockContainer(Transaction t,
ContainerHandle container,
boolean waitForLock,
boolean forUpdate)
Obtain a Container shared or exclusive lock until the end of the nested transaction. |
Methods inherited from class org.apache.derby.impl.store.raw.xact.NoLocking |
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lockRecordForRead, lockRecordForWrite, unlockContainer, unlockRecordAfterRead, zeroDurationLockRecordForWrite |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected final LockFactory lf
Constructor Detail |
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protected ContainerLocking3(LockFactory lf)
Method Detail |
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public boolean lockContainer(Transaction t, ContainerHandle container, boolean waitForLock, boolean forUpdate) throws StandardException
lockContainer
in interface LockingPolicy
lockContainer
in class NoLocking
t
- Transaction to associate lock with.container
- Container to lock.waitForLock
- Should lock request wait until granted?forUpdate
- Should container be locked for update, or read?
StandardException
- Standard Derby error policyContainerHandle
public int getMode()
LockingPolicy
getMode
in interface LockingPolicy
getMode
in class NoLocking
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Built on Thu 2011-03-10 11:54:14+0000, from revision ??? | ||||||||
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