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

java.lang.Object
  org.apache.derby.impl.store.raw.data.BaseContainer
      org.apache.derby.impl.store.raw.data.FileContainer
          org.apache.derby.impl.store.raw.data.InputStreamContainer

All Implemented Interfaces:

org.apache.derby.iapi.services.cache.Cacheable, org.apache.derby.iapi.services.locks.Lockable, org.apache.derby.iapi.services.io.TypedFormat

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public class InputStreamContainer

extends FileContainer

A class that uses a ZipEntry to be a single container file, but read-only.

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Field Summary
private  org.apache.derby.io.StorageFile	containerPath

 

Fields inherited from class org.apache.derby.impl.store.raw.data.FileContainer

ALLOC_PAGE_ARG_NUM, allocCache, canUpdate, CHECKSUM_SIZE, CONTAINER_INFO_SIZE, containerCache, containerInfo, containerVersion, dataFactory, estimatedRowCount, FIRST_ALLOC_PAGE_NUMBER, FIRST_ALLOC_PAGE_OFFSET, firstAllocPageNumber, firstAllocPageOffset, formatIdInteger, initialPages, isDirty, lastLogInstant, minimumRecordSize, pageCache, pageSize, preDirty, SPACE_TRACE, spareSpace, STORED_PAGE_ARG_NUM

 

Fields inherited from class org.apache.derby.impl.store.raw.data.BaseContainer

identity, isCommittedDrop, isDropped, isReusableRecordId

 

Constructor Summary

InputStreamContainer(BaseDataFileFactory factory)

 

Method Summary
void	clean(boolean forRemove)           Write out the header information for this container.
protected  void	closeContainer()
protected  void	createContainer(org.apache.derby.iapi.store.raw.ContainerKey newIdentity)           Create a new container, all references to identity must be through the passed in identity, this object will no identity until after this method returns.
protected  void	flushAll()           Flush all outstanding changes in this container to persistent storage.
protected  java.io.InputStream	getInputStream()           Get an input stream positioned at the beginning of the file
protected  boolean	openContainer(org.apache.derby.iapi.store.raw.ContainerKey newIdentity)           Open a container.
protected  int	preAllocate(long lastPreallocPagenum, int preAllocSize)           Preallocate page.
protected  void	readPage(long pageNumber, byte[] pageData)           Read a page into the supplied array.
protected  void	readPositionedPage(long pageOffset, byte[] pageData)           Read the page at the positioned offset.
protected  void	removeContainer(org.apache.derby.iapi.store.raw.log.LogInstant instant, boolean leaveStub)           Remove the container.
protected  void	truncatePages(long lastValidPagenum)
protected  void	writePage(long pageNumber, byte[] pageData, boolean syncPage)           Write a page from the supplied array.

 

Methods inherited from class org.apache.derby.impl.store.raw.data.FileContainer

bumpContainerVersion, canUpdate, clearIdentity, clearPreallocThreshold, compressContainer, createIdent, createIdentity, deallocatePage, decryptPage, doPreAllocatePages, dropContainer, encryptPage, getAllocPage, getAnyPage, getContainerProperties, getContainerVersion, getEmbryonicPage, getEstimatedPageCount, getEstimatedRowCount, getFirstHeadPage, getHeadPage, getMinimumRecordSize, getNextHeadPage, getPage, getPageForCompress, getPageForInsert, getPageSize, getSpaceInfo, getSpareSpace, getTypeFormatId, initPage, isDirty, latchPage, letGo, logCreateContainerInfo, newPage, preDirty, prepareForBulkLoad, readHeader, reCreatePageForLoadTran, setDirty, setEstimatedRowCount, setIdent, setIdentity, trackUnfilledPage, updateEstimatedRowCount, writeHeader, writeHeader

 

Methods inherited from class org.apache.derby.impl.store.raw.data.BaseContainer

addPage, compressContainer, fillInIdentity, getAllocPage, getAnyPage, getCommittedDropState, getContainerId, getContainerStatus, getDeallocLock, getDroppedState, getFirstPage, getIdentity, getNextPage, getSegmentId, isReusableRecordId, lockAttributes, lockerAlwaysCompatible, lockEvent, removePage, requestCompatible, setCommittedDropState, setDroppedState, setReusableRecordIdState, truncate, unlockEvent, use

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.apache.derby.iapi.services.cache.Cacheable

getIdentity

 

Field Detail

containerPath

private org.apache.derby.io.StorageFile containerPath

Constructor Detail

InputStreamContainer

public InputStreamContainer(BaseDataFileFactory factory)

Method Detail

openContainer

protected final boolean openContainer(org.apache.derby.iapi.store.raw.ContainerKey newIdentity)
                               throws org.apache.derby.iapi.error.StandardException

Description copied from class: FileContainer

Open a container.

Longer descrption of routine.

Open a container. Open the file that maps to this container, if the file does not exist then we assume the container was never created. If the file exists but we have trouble opening it then we throw some exception.
MT - single thread required - Enforced by cache manager.

Specified by:

openContainer in class FileContainer

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closeContainer

protected void closeContainer()

Specified by:

closeContainer in class FileContainer

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clean

public final void clean(boolean forRemove)
                 throws org.apache.derby.iapi.error.StandardException

Write out the header information for this container. If an i/o exception occurs then ...

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preAllocate

protected final int preAllocate(long lastPreallocPagenum,
                                int preAllocSize)

Preallocate page.

Specified by:

preAllocate in class FileContainer

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truncatePages

protected void truncatePages(long lastValidPagenum)

Specified by:

truncatePages in class BaseContainer

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createContainer

protected void createContainer(org.apache.derby.iapi.store.raw.ContainerKey newIdentity)
                        throws org.apache.derby.iapi.error.StandardException

Create a new container, all references to identity must be through the passed in identity, this object will no identity until after this method returns.

Specified by:

createContainer in class FileContainer

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removeContainer

protected final void removeContainer(org.apache.derby.iapi.store.raw.log.LogInstant instant,
                                     boolean leaveStub)
                              throws org.apache.derby.iapi.error.StandardException

Remove the container.

Specified by:

removeContainer in class BaseContainer

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readPage

protected final void readPage(long pageNumber,
                              byte[] pageData)
                       throws java.io.IOException,
                              org.apache.derby.iapi.error.StandardException

Read a page into the supplied array.
MT - thread safe

Specified by:

readPage in class FileContainer

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readPositionedPage

protected void readPositionedPage(long pageOffset,
                                  byte[] pageData)
                           throws java.io.IOException

Read the page at the positioned offset. This default implementation, opens the stream and skips to the offset and then reads the data into pageData.

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writePage

protected final void writePage(long pageNumber,
                               byte[] pageData,
                               boolean syncPage)
                        throws java.io.IOException,
                               org.apache.derby.iapi.error.StandardException

Write a page from the supplied array.
MT - thread safe

Specified by:

writePage in class FileContainer

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flushAll

protected final void flushAll()

Description copied from class: BaseContainer

Flush all outstanding changes in this container to persistent storage.

Specified by:

flushAll in class BaseContainer

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getInputStream

protected java.io.InputStream getInputStream()
                                      throws java.io.IOException

Get an input stream positioned at the beginning of the file

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> store >> raw >> [ data overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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