org.apache.poi.hssf.record

Class SSTRecord

java.lang.Object

org.apache.poi.hssf.record.RecordBase

org.apache.poi.hssf.record.Record

org.apache.poi.hssf.record.cont.ContinuableRecord

org.apache.poi.hssf.record.SSTRecord

All Implemented Interfaces:

Duplicatable, GenericRecord

public final class SSTRecord
extends ContinuableRecord

Static String Table Record (0x00FC)

This holds all the strings for LabelSSTRecords.

See Also:

LabelSSTRecord, ContinueRecord

Field Summary

Fields

Modifier and Type	Field and Description
static short	sid

Constructor Summary

Constructors

Constructor and Description
SSTRecord()
SSTRecord(RecordInputStream in) Fill the fields from the data
SSTRecord(SSTRecord other)

Method Summary

Modifier and Type	Method and Description
int	addString(UnicodeString string) Add a string.
int	calcExtSSTRecordSize() Calculates the size in bytes of the EXTSST record as it would be if the record was serialized.
SSTRecord	copy()
ExtSSTRecord	createExtSSTRecord(int sstOffset) Creates an extended string record based on the current contents of the current SST record.
java.util.Map<java.lang.String,java.util.function.Supplier<?>>	getGenericProperties()
HSSFRecordTypes	getGenericRecordType()
int	getNumStrings()
int	getNumUniqueStrings()
short	getSid() return the non static version of the id for this record.
UnicodeString	getString(int id) Get a particular string by its index
protected void	serialize(ContinuableRecordOutput out) Serializes this record's content to the supplied data output.

Methods inherited from class org.apache.poi.hssf.record.cont.ContinuableRecord

getRecordSize, serialize

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

cloneViaReserialise, serialize, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.poi.common.usermodel.GenericRecord

getGenericChildren

Field Detail

sid

public static final short sid

See Also:

Constant Field Values

Constructor Detail

SSTRecord

public SSTRecord()

SSTRecord

public SSTRecord(SSTRecord other)

SSTRecord

public SSTRecord(RecordInputStream in)

Fill the fields from the data

The data consists of sets of string data. This string data is arranged as follows:

 short  string_length;   // length of string data
 byte   string_flag;     // flag specifying special string
                         // handling
 short  run_count;       // optional count of formatting runs
 int    extend_length;   // optional extension length
 char[] string_data;     // string data, can be byte[] or
                         // short[] (length of array is
                         // string_length)
 int[]  formatting_runs; // optional formatting runs (length of
                         // array is run_count)
 byte[] extension;       // optional extension (length of array
                         // is extend_length)
 

The string_flag is bit mapped as follows:

string_flag mapping

Bit number	Meaning if 0	Meaning if 1
0	string_data is byte[]	string_data is short[]
1	Should always be 0	string_flag is defective
2	extension is not included	extension is included
3	formatting run data is not included	formatting run data is included
4	Should always be 0	string_flag is defective
5	Should always be 0	string_flag is defective
6	Should always be 0	string_flag is defective
7	Should always be 0	string_flag is defective

We can handle eating the overhead associated with bits 2 or 3 (or both) being set, but we have no idea what to do with the associated data. The UnicodeString class can handle the byte[] vs short[] nature of the actual string data

Parameters:

in - the RecordInputStream to read the record from

Method Detail

addString

public int addString(UnicodeString string)

Add a string.

Parameters:

string - string to be added

Returns:

the index of that string in the table

getNumStrings

public int getNumStrings()

Returns:

number of strings

getNumUniqueStrings

public int getNumUniqueStrings()

Returns:

number of unique strings

getString

public UnicodeString getString(int id)

Get a particular string by its index

Parameters:

id - index into the array of strings

Returns:

the desired string

getSid

public short getSid()

Description copied from class: Record

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

Specified by:

getSid in class Record

Returns:

he id for this record

serialize

protected void serialize(ContinuableRecordOutput out)

Description copied from class: ContinuableRecord

Serializes this record's content to the supplied data output.

The standard BIFF header (ushort sid, ushort size) has been handled by the superclass, so only BIFF data should be written by this method. Simple data types can be written with the standard LittleEndianOutput methods. Methods from ContinuableRecordOutput can be used to serialize strings (with ContinueRecords being written as required). If necessary, implementors can explicitly start ContinueRecords (regardless of the amount of remaining space).

Specified by:

serialize in class ContinuableRecord

Parameters:

out - a data output stream

createExtSSTRecord

public ExtSSTRecord createExtSSTRecord(int sstOffset)

Creates an extended string record based on the current contents of the current SST record. The offset within the stream to the SST record is required because the extended string record points directly to the strings in the SST record.

NOTE: THIS FUNCTION MUST ONLY BE CALLED AFTER THE SST RECORD HAS BEEN SERIALIZED.

Parameters:

sstOffset - The offset in the stream to the start of the SST record.

Returns:

The new SST record.

calcExtSSTRecordSize

public int calcExtSSTRecordSize()

Calculates the size in bytes of the EXTSST record as it would be if the record was serialized.

Returns:

The size of the ExtSST record in bytes.

copy

public SSTRecord copy()

Specified by:

copy in interface Duplicatable

Specified by:

copy in class Record

Returns:

a deep copy of the implementing class / instance

getGenericRecordType

public HSSFRecordTypes getGenericRecordType()

Specified by:

getGenericRecordType in interface GenericRecord

Specified by:

getGenericRecordType in class Record

getGenericProperties

public java.util.Map<java.lang.String,java.util.function.Supplier<?>> getGenericProperties()