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org.apache.derby.impl.store.raw.data
Class LoggableAllocActions  

java.lang.Object
  org.apache.derby.impl.store.raw.data.LoggableAllocActions

All Implemented Interfaces:

AllocationActions

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public class LoggableAllocActions

extends java.lang.Object

implements AllocationActions

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Constructor Summary

LoggableAllocActions()

 

Method Summary
void	actionAllocatePage(org.apache.derby.iapi.store.raw.xact.RawTransaction t, BasePage allocPage, long pageNumber, int doStatus, int undoStatus)           Set the allocation status of pageNumber to doStatus.
void	actionChainAllocPage(org.apache.derby.iapi.store.raw.xact.RawTransaction t, BasePage allocPage, long pageNumber, long pageOffset)           Chain one allocation page to the next.
void	actionCompressSpaceOperation(org.apache.derby.iapi.store.raw.xact.RawTransaction t, BasePage allocPage, int new_highest_page, int num_pages_truncated)           Compress free pages.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

LoggableAllocActions

public LoggableAllocActions()

Method Detail

actionAllocatePage

public void actionAllocatePage(org.apache.derby.iapi.store.raw.xact.RawTransaction t,
                               BasePage allocPage,
                               long pageNumber,
                               int doStatus,
                               int undoStatus)
                        throws org.apache.derby.iapi.error.StandardException

Set the allocation status of pageNumber to doStatus. To undo this operation, set the allocation status of pageNumber to undoStatus

Specified by:

actionAllocatePage in interface AllocationActions

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actionChainAllocPage

public void actionChainAllocPage(org.apache.derby.iapi.store.raw.xact.RawTransaction t,
                                 BasePage allocPage,
                                 long pageNumber,
                                 long pageOffset)
                          throws org.apache.derby.iapi.error.StandardException

Chain one allocation page to the next.

Specified by:

actionChainAllocPage in interface AllocationActions

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actionCompressSpaceOperation

public void actionCompressSpaceOperation(org.apache.derby.iapi.store.raw.xact.RawTransaction t,
                                         BasePage allocPage,
                                         int new_highest_page,
                                         int num_pages_truncated)
                                  throws org.apache.derby.iapi.error.StandardException

Compress free pages.

Compress the free pages at the end of the range maintained by this allocation page. All pages being compressed should be FREE. Only pages in the last allocation page can be compressed.

Specified by:

actionCompressSpaceOperation in interface AllocationActions

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