com.sun.j3d.utils.scenegraph.io.retained

Class StreamControl

java.lang.Object

com.sun.j3d.utils.scenegraph.io.retained.Controller

com.sun.j3d.utils.scenegraph.io.retained.StreamControl

public class StreamControl
extends Controller

Provides the infrastructure for ScenGraphStream Reader and Writer

Nested Class Summary

Nested classes/interfaces inherited from class com.sun.j3d.utils.scenegraph.io.retained.Controller

Controller.J3dIOObjectInputStream

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	FILE_IDENT
private java.io.DataInputStream	inputStream
private java.io.DataOutputStream	outputStream

Fields inherited from class com.sun.j3d.utils.scenegraph.io.retained.Controller

BG_DIR_PTR, BRANCH_GRAPH_COUNT, classLoader, currentFileVersion, FILE_DESCRIPTION, j3dClasses, NAMES_OBJECTS_TABLE_PTR, NODE_TYPES_PTR, nullObject, outputFileVersion, SYMBOL_TABLE_PTR, symbolTable, UNIVERSE_CONFIG_PTR

Constructor Summary

Constructors

Constructor and Description
StreamControl(java.io.DataInputStream in)
StreamControl(java.io.DataOutputStream out)

Method Summary

Methods

Modifier and Type	Method and Description
void	addNamedObjects(java.util.HashMap namedObjects) Add the named objects to the symbol table
void	close()
long	getFilePointer() Implementation of abstract method from Controller.
void	loadNodeComponent(SymbolTableData symbol) Used by SymbolTable to load a node component that is not in current graph
BranchGroup	readBranchGraph(java.util.HashMap namedObjects)
protected void	readBranchGraphs(int[] graphs) Read the set of branchgraps.
void	readStreamHeader()
void	writeBranchGraph(BranchGroup bg, java.io.Serializable userData) The BranchGraph userData is not supported in a stream and will be ignored.
void	writeStreamHeader() Prepare the Stream for writing, by sending header information

Methods inherited from class com.sun.j3d.utils.scenegraph.io.retained.Controller

addNamedObject, createState, createState, createState, getClassLoader, getCurrentFileVersion, getImageCompression, getNamedObject, getNames, getNodeClassFromID, getNodeClassID, getOutputFileVersion, getSymbolTable, readBounds, readColor3f, readColor4f, readMatrix4d, readNodeComponents, readObject, readPoint3d, readPoint3f, readQuat4f, readSerializedData, readSharedGroup, readTransform3D, readTuple3d, readTuple3f, readTuple4d, readTuple4f, readUniverse, readVector3f, readVector4d, readVector4f, reset, setClassLoader, skipUserData, useSuperClassIfNoChildClass, writeBounds, writeColor3f, writeColor4f, writeMatrix4d, writeNodeComponents, writeObject, writePoint3d, writePoint3f, writeQuat4f, writeSerializedData, writeSharedGroup, writeTransform3D, writeTuple3d, writeTuple3f, writeTuple4d, writeTuple4f, writeUniverse, writeVector3f, writeVector4d, writeVector4f

Methods inherited from class java.lang.Object

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

Field Detail

FILE_IDENT

protected java.lang.String FILE_IDENT

inputStream

private java.io.DataInputStream inputStream

outputStream

private java.io.DataOutputStream outputStream

Constructor Detail

StreamControl

public StreamControl(java.io.DataOutputStream out)

StreamControl

public StreamControl(java.io.DataInputStream in)

Method Detail

writeStreamHeader

public void writeStreamHeader()
                       throws java.io.IOException

Prepare the Stream for writing, by sending header information

Throws:

java.io.IOException

readStreamHeader

public void readStreamHeader()
                      throws java.io.IOException

Throws:

java.io.IOException

addNamedObjects

public void addNamedObjects(java.util.HashMap namedObjects)

Add the named objects to the symbol table

writeBranchGraph

public void writeBranchGraph(BranchGroup bg,
                    java.io.Serializable userData)
                      throws java.io.IOException

The BranchGraph userData is not supported in a stream and will be ignored. However the data in the userData field of the BranchGroup will be stored in the stream

Specified by:

writeBranchGraph in class Controller

Throws:

java.io.IOException

readBranchGraph

public BranchGroup readBranchGraph(java.util.HashMap namedObjects)
                            throws java.io.IOException

Throws:

java.io.IOException

readBranchGraphs

protected void readBranchGraphs(int[] graphs)
                         throws java.io.IOException

Read the set of branchgraps. Used by readUniverse RandomAccessFileControl will read the graphs in the array, StreamControl expects the graphs to follow the universe in the stream so it will read graphs.length branchgraphs.

Specified by:

readBranchGraphs in class Controller

Throws:

java.io.IOException

loadNodeComponent

public void loadNodeComponent(SymbolTableData symbol)
                       throws java.io.IOException

Used by SymbolTable to load a node component that is not in current graph

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in class Controller

Throws:

java.io.IOException

getFilePointer

public long getFilePointer()

Implementation of abstract method from Controller. Always returns 0

Specified by:

getFilePointer in class Controller