org.zkoss.poi.hssf.record

Class AbstractEscherHolderRecord

java.lang.Object

org.zkoss.poi.hssf.record.RecordBase

org.zkoss.poi.hssf.record.Record

org.zkoss.poi.hssf.record.AbstractEscherHolderRecord

Direct Known Subclasses:

DrawingGroupRecord, DrawingRecordForBiffViewer, EscherAggregate

public abstract class AbstractEscherHolderRecord
extends Record

The escher container record is used to hold escher records. It is abstract and must be subclassed for maximum benefit.

Author:

Glen Stampoultzis (glens at apache.org), Michael Zalewski (zalewski at optonline.net)

Constructor Summary

Constructors

Constructor and Description
AbstractEscherHolderRecord()
AbstractEscherHolderRecord(RecordInputStream in)

Method Summary

Modifier and Type	Method and Description
boolean	addEscherRecord(EscherRecord element)
void	addEscherRecord(int index, EscherRecord element)
void	clearEscherRecords()
Object	clone()
protected void	convertRawBytesToEscherRecords()
void	decode() Convert raw data to escher records.
EscherRecord	findFirstWithId(short id) Descends into all our children, returning the first EscherRecord with the given id, or null if none found
EscherContainerRecord	getEscherContainer() If we have a EscherContainerRecord as one of our children (and most top level escher holders do), then return that.
EscherRecord	getEscherRecord(int index)
List<EscherRecord>	getEscherRecords()
byte[]	getRawData()
protected abstract String	getRecordName()
int	getRecordSize() gives the current serialized size of the record.
abstract short	getSid() return the non static version of the id for this record.
void	join(AbstractEscherHolderRecord record) Big drawing group records are split but it's easier to deal with them as a whole group so we need to join them together.
void	processContinueRecord(byte[] record)
int	serialize(int offset, byte[] data) called by the class that is responsible for writing this sucker.
void	setRawData(byte[] rawData)
String	toString() get a string representation of the record (for biffview/debugging)

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

cloneViaReserialise, serialize

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractEscherHolderRecord

public AbstractEscherHolderRecord()

AbstractEscherHolderRecord

public AbstractEscherHolderRecord(RecordInputStream in)

Method Detail

convertRawBytesToEscherRecords

protected void convertRawBytesToEscherRecords()

toString

public String toString()

Description copied from class: Record

get a string representation of the record (for biffview/debugging)

Overrides:

toString in class Record

getRecordName

protected abstract String getRecordName()

serialize

public int serialize(int offset,
                     byte[] data)

Description copied from class: RecordBase

called by the class that is responsible for writing this sucker. Subclasses should implement this so that their data is passed back in a byte array.

Specified by:

serialize in class RecordBase

Parameters:

offset - to begin writing at

data - byte array containing instance data

Returns:

number of bytes written

getRecordSize

public int getRecordSize()

Description copied from class: RecordBase

gives the current serialized size of the record. Should include the sid and reclength (4 bytes).

Specified by:

getRecordSize in class RecordBase

getSid

public abstract short getSid()

Description copied from class: Record

return the non static version of the id for this record.

Specified by:

getSid in class Record

clone

public Object clone()

Overrides:

clone in class Record

addEscherRecord

public void addEscherRecord(int index,
                            EscherRecord element)

addEscherRecord

public boolean addEscherRecord(EscherRecord element)

getEscherRecords

public List<EscherRecord> getEscherRecords()

clearEscherRecords

public void clearEscherRecords()

getEscherContainer

public EscherContainerRecord getEscherContainer()

If we have a EscherContainerRecord as one of our children (and most top level escher holders do), then return that.

findFirstWithId

public EscherRecord findFirstWithId(short id)

Descends into all our children, returning the first EscherRecord with the given id, or null if none found

getEscherRecord

public EscherRecord getEscherRecord(int index)

join

public void join(AbstractEscherHolderRecord record)

Big drawing group records are split but it's easier to deal with them as a whole group so we need to join them together.

processContinueRecord

public void processContinueRecord(byte[] record)

getRawData

public byte[] getRawData()

setRawData

public void setRawData(byte[] rawData)

decode

public void decode()

Convert raw data to escher records.