org.zkoss.poi.hslf.record

Class ExOleObjStg

java.lang.Object

org.zkoss.poi.hslf.record.Record

org.zkoss.poi.hslf.record.RecordAtom

org.zkoss.poi.hslf.record.ExOleObjStg

All Implemented Interfaces:

PersistRecord, PositionDependentRecord

public class ExOleObjStg
extends RecordAtom
implements PositionDependentRecord, PersistRecord

Storage for embedded OLE objects.

Author:

Daniel Noll

Field Summary

Fields

Modifier and Type	Field and Description
protected int	myLastOnDiskOffset Our location on the disk, as of the last write out

Fields inherited from class org.zkoss.poi.hslf.record.Record

logger

Constructor Summary

Constructors

Modifier	Constructor and Description
	ExOleObjStg() Constructs a new empty storage container.
protected	ExOleObjStg(byte[] source, int start, int len) Constructs the link related atom record from its source data.

Method Summary

Modifier and Type	Method and Description
InputStream	getData() Opens an input stream which will decompress the data on the fly.
int	getDataLength() Gets the uncompressed length of the data.
int	getLastOnDiskOffset() Fetch our location on the disk, as of the last write out
int	getPersistId() Fetch our sheet ID, as found from a PersistPtrHolder.
byte[]	getRawData()
long	getRecordType() Gets the record type.
boolean	isCompressed()
void	setData(byte[] data) Sets the embedded data.
void	setLastOnDiskOffset(int offset) Update the Record's idea of where on disk it lives, after a write out.
void	setPersistId(int id) Set our sheet ID, as found from a PersistPtrHolder
void	updateOtherRecordReferences(Hashtable<Integer,Integer> oldToNewReferencesLookup) Offer the record the list of records that have changed their location as part of the writeout.
void	writeOut(OutputStream out) Write the contents of the record back, so it can be written to disk.

Methods inherited from class org.zkoss.poi.hslf.record.RecordAtom

getChildRecords, isAnAtom

Methods inherited from class org.zkoss.poi.hslf.record.Record

buildRecordAtOffset, createRecordForType, findChildRecords, writeLittleEndian, writeLittleEndian

Methods inherited from class java.lang.Object

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

Field Detail

myLastOnDiskOffset

protected int myLastOnDiskOffset

Our location on the disk, as of the last write out

Constructor Detail

ExOleObjStg

public ExOleObjStg()

Constructs a new empty storage container.

ExOleObjStg

protected ExOleObjStg(byte[] source,
                      int start,
                      int len)

Constructs the link related atom record from its source data.

Parameters:

source - the source data as a byte array.

start - the start offset into the byte array.

len - the length of the slice in the byte array.

Method Detail

isCompressed

public boolean isCompressed()

getDataLength

public int getDataLength()

Gets the uncompressed length of the data.

Returns:

the uncompressed length of the data.

getData

public InputStream getData()

Opens an input stream which will decompress the data on the fly.

Returns:

the data input stream.

getRawData

public byte[] getRawData()

setData

public void setData(byte[] data)
             throws IOException

Sets the embedded data.

Parameters:

data - the embedded data.

Throws:

IOException

getRecordType

public long getRecordType()

Gets the record type.

Specified by:

getRecordType in class Record

Returns:

the record type.

writeOut

public void writeOut(OutputStream out)
              throws IOException

Write the contents of the record back, so it can be written to disk.

Specified by:

writeOut in class Record

Parameters:

out - the output stream to write to.

Throws:

IOException - if an error occurs.

getPersistId

public int getPersistId()

Fetch our sheet ID, as found from a PersistPtrHolder. Should match the RefId of our matching SlidePersistAtom

Specified by:

getPersistId in interface PersistRecord

setPersistId

public void setPersistId(int id)

Set our sheet ID, as found from a PersistPtrHolder

Specified by:

setPersistId in interface PersistRecord

getLastOnDiskOffset

public int getLastOnDiskOffset()

Fetch our location on the disk, as of the last write out

Specified by:

getLastOnDiskOffset in interface PositionDependentRecord

setLastOnDiskOffset

public void setLastOnDiskOffset(int offset)

Update the Record's idea of where on disk it lives, after a write out. Use with care...

Specified by:

setLastOnDiskOffset in interface PositionDependentRecord

updateOtherRecordReferences

public void updateOtherRecordReferences(Hashtable<Integer,Integer> oldToNewReferencesLookup)

Description copied from interface: PositionDependentRecord

Offer the record the list of records that have changed their location as part of the writeout.

Specified by:

updateOtherRecordReferences in interface PositionDependentRecord