public abstract class EscherRecord extends java.lang.Object implements Duplicatable, GenericRecord
Modifier | Constructor and Description |
---|---|
|
EscherRecord()
Create a new instance
|
protected |
EscherRecord(EscherRecord other) |
Modifier and Type | Method and Description |
---|---|
EscherRecord |
clone()
Deprecated.
use
copy() |
abstract EscherRecord |
copy() |
void |
display(java.io.PrintWriter w,
int indent)
The display methods allows escher variables to print the record names
according to their hierarchy.
|
protected int |
fillFields(byte[] data,
EscherRecordFactory f)
Delegates to fillFields(byte[], int, EscherRecordFactory)
|
abstract int |
fillFields(byte[] data,
int offset,
EscherRecordFactory recordFactory)
The contract of this method is to deserialize an escher record including
it's children.
|
EscherRecord |
getChild(int index)
Returns the indexed child record.
|
java.util.List<EscherRecord> |
getChildRecords() |
java.util.List<? extends GenericRecord> |
getGenericChildren() |
java.util.Map<java.lang.String,java.util.function.Supplier<?>> |
getGenericProperties() |
short |
getInstance()
Returns the instance part of the option record.
|
short |
getOptions()
Note that
options is an internal field. |
short |
getRecordId()
Return the current record id.
|
abstract java.lang.String |
getRecordName()
Subclasses should return the short name for this escher record.
|
abstract int |
getRecordSize()
Subclasses should effeciently return the number of bytes required to
serialize the record.
|
short |
getVersion()
Returns the version part of the option record.
|
boolean |
isContainerRecord()
Determine whether this is a container record by inspecting the option field.
|
protected int |
readHeader(byte[] data,
int offset)
Reads the 8 byte header information and populates the
options
and recordId records. |
protected static short |
readInstance(byte[] data,
int offset)
Read the options field from header and return instance part of it.
|
byte[] |
serialize()
Serializes to a new byte array.
|
int |
serialize(int offset,
byte[] data)
Serializes to an existing byte array without serialization listener.
|
abstract int |
serialize(int offset,
byte[] data,
EscherSerializationListener listener)
Serializes the record to an existing byte array.
|
void |
setChildRecords(java.util.List<EscherRecord> childRecords)
Sets the child records for this record.
|
void |
setInstance(short value)
Sets the instance part of record
|
void |
setOptions(short options)
Set the options this this record.
|
void |
setRecordId(short recordId)
Sets the record id for this record.
|
void |
setVersion(short value)
Sets the version part of record
|
java.lang.String |
toString() |
java.lang.String |
toXml() |
java.lang.String |
toXml(java.lang.String tab) |
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
getGenericRecordType
public EscherRecord()
protected EscherRecord(EscherRecord other)
protected int fillFields(byte[] data, EscherRecordFactory f)
data
- they bytes to serialize fromf
- the escher record factoryfillFields(byte[], int, org.apache.poi.ddf.EscherRecordFactory)
public abstract int fillFields(byte[] data, int offset, EscherRecordFactory recordFactory)
data
- The byte array containing the serialized escher
records.offset
- The offset into the byte array.recordFactory
- A factory for creating new escher records.protected int readHeader(byte[] data, int offset)
options
and recordId
records.data
- the byte array to read fromoffset
- the offset to start reading fromprotected static short readInstance(byte[] data, int offset)
data
- the byte array to read fromoffset
- the offset to start reading frompublic boolean isContainerRecord()
@Internal public short getOptions()
options
is an internal field.
Use setInstance(short)
()} and setVersion(short)
()} to set the actual fields.@Internal public void setOptions(short options)
Note that options
is an internal field.
Use getInstance()
and getVersion()
to access actual fields.
options
- the record optionspublic byte[] serialize()
serialize(int, byte[])
public int serialize(int offset, byte[] data)
offset
- the offset within the data byte array.data
- the data array to serialize to.serialize(int, byte[], org.apache.poi.ddf.EscherSerializationListener)
public abstract int serialize(int offset, byte[] data, EscherSerializationListener listener)
offset
- the offset within the byte arraydata
- the data array to serialize tolistener
- a listener for begin and end serialization events. This
is useful because the serialization is
hierarchical/recursive and sometimes you need to be able
break into that.public abstract int getRecordSize()
public short getRecordId()
public void setRecordId(short recordId)
recordId
- the record idpublic java.util.List<EscherRecord> getChildRecords()
EscherContainerRecord
public void setChildRecords(java.util.List<EscherRecord> childRecords)
childRecords
- Not used in base implementation.@Deprecated @Removal(version="5.0.0") public final EscherRecord clone()
copy()
clone
in class java.lang.Object
public EscherRecord getChild(int index)
index
- the index of the child within the child recordspublic void display(java.io.PrintWriter w, int indent)
w
- The print writer to output to.indent
- The current indent level.public abstract java.lang.String getRecordName()
public short getInstance()
public void setInstance(short value)
value
- instance part valuepublic short getVersion()
public void setVersion(short value)
value
- version part valuepublic java.lang.String toXml()
public final java.lang.String toXml(java.lang.String tab)
tab
- - each children must be indented right relative to its parentpublic final java.lang.String toString()
toString
in class java.lang.Object
public java.util.List<? extends GenericRecord> getGenericChildren()
getGenericChildren
in interface GenericRecord
public java.util.Map<java.lang.String,java.util.function.Supplier<?>> getGenericProperties()
getGenericProperties
in interface GenericRecord
public abstract EscherRecord copy()
copy
in interface Duplicatable
Copyright 2020 The Apache Software Foundation or its licensors, as applicable.