Module graph

Package de.grogra.persistence

Class XMLPersistenceReader

java.lang.Object

de.grogra.persistence.XMLPersistenceReader

All Implemented Interfaces:

PersistenceInput

Direct Known Subclasses:

XMLGraphReader, XMLRootlessGraphReader

public class XMLPersistenceReader
extends Object
implements PersistenceInput

An XMLPersistenceReader is used to read the serialization output of an XMLPersistenceWriter.

Author:

Ole Kniemeyer

Field Summary

Fields

Modifier and Type	Field	Description
static final ThreadLocal<WeakReference<XMLPersistenceReader>>	CURRENT_READER
static Object	currentDeserializedObject
protected final LongHashMap<PersistenceCapable>	duplicatePersistentObjects

Fields inherited from interface de.grogra.persistence.PersistenceInput

ARRAY_OBJECT, MANAGEABLE_OBJECT, MIN_UNUSED_KIND, NULL_OBJECT, PERSISTENT_OBJECT_ID, PLAIN_OBJECT, SERIALIZED_OBJECT, SHARED_OBJECT_REFERENCE, STRING_OBJECT

Constructor Summary

Constructors

Constructor	Description
XMLPersistenceReader(PersistenceBindings bindings)

Method Summary

Modifier and Type	Method	Description
void	addNestedObjectToResolve(Object ref)	This list hold the objects that contains a node in their serialization and which could not be properly resolved.
boolean	areFieldsProvided()
int	beginArray()
boolean	beginComponent(ManageableType.ArrayComponent c, int index)
ManageableType.Field	beginField(ManageableType type, ManageableType.Field field)
ManageableType	beginManaged()
void	endArray()
void	endComponent()
void	endField()
void	endManaged()
PersistenceBindings	getBindings()
protected ManageableType.Field	getManagedField(ManageableType t, String name)
int	getNextObjectKind()
PersistenceCapable	getObject(long id)
boolean	isSetToBeResolved(long nid)
char	peek()
String	peekName()
final void	readAttribute(PersistenceCapable object, String uri, String name, String value)
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
final void	readElements(PersistenceCapable object, SAXElement parent)
float	readFloat()
int	readInt()
long	readLong()
String	readName()
Object	readObject(int kind, Type type)
PersistenceCapable	readPersistentObject()
long	readPersistentObjectId()
Shareable	readSharedObject()
short	readShort()
String	readString()
int	readUnsignedByte()
int	readUnsignedShort()
void	registerObject(long id, PersistenceCapable o)
protected String	replaceType(String type)
void	resolve()
PersistenceCapable	resolveId(long inputId)
XMLPersistenceReader	setCurrentReader(XMLPersistenceReader r)
void	setNested(boolean nested)
void	valueOf(Manageable object, String value)	Deserializes a string into an existing object.
Object	valueOf(Type type, String s)	Deserializes a string into an object of the given type.

Methods inherited from class java.lang.Object

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

Field Details

CURRENT_READER

public static final ThreadLocal<WeakReference<XMLPersistenceReader>> CURRENT_READER

currentDeserializedObject

public static Object currentDeserializedObject

duplicatePersistentObjects

protected final LongHashMap<PersistenceCapable> duplicatePersistentObjects

Constructor Details

XMLPersistenceReader

public XMLPersistenceReader(PersistenceBindings bindings)

Method Details

setCurrentReader

public XMLPersistenceReader setCurrentReader(XMLPersistenceReader r)

getBindings

public PersistenceBindings getBindings()

Specified by:

getBindings in interface PersistenceInput

getObject

public PersistenceCapable getObject(long id)

registerObject

public void registerObject(long id,
 PersistenceCapable o)

readBoolean

public boolean readBoolean()
                    throws IOException

Specified by:

readBoolean in interface PersistenceInput

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Specified by:

readByte in interface PersistenceInput

Throws:

IOException

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Specified by:

readUnsignedByte in interface PersistenceInput

Throws:

IOException

readShort

public short readShort()
                throws IOException

Specified by:

readShort in interface PersistenceInput

Throws:

IOException

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Specified by:

readUnsignedShort in interface PersistenceInput

Throws:

IOException

readChar

public char readChar()
              throws IOException

Specified by:

readChar in interface PersistenceInput

Throws:

IOException

readInt

public int readInt()
            throws IOException

Specified by:

readInt in interface PersistenceInput

Throws:

IOException

readLong

public long readLong()
              throws IOException

Specified by:

readLong in interface PersistenceInput

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Specified by:

readFloat in interface PersistenceInput

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Specified by:

readDouble in interface PersistenceInput

Throws:

IOException

readName

public String readName()
                throws IOException

Specified by:

readName in interface PersistenceInput

Throws:

IOException

peekName

public String peekName()
                throws IOException

Throws:

IOException

readString

public String readString()
                  throws IOException

Specified by:

readString in interface PersistenceInput

Throws:

IOException

getNextObjectKind

public int getNextObjectKind()
                      throws IOException

Specified by:

getNextObjectKind in interface PersistenceInput

Throws:

IOException

readObject

public Object readObject(int kind,
 Type type)
                  throws IOException

Specified by:

readObject in interface PersistenceInput

Throws:

IOException

readSharedObject

public Shareable readSharedObject()
                           throws IOException

Specified by:

readSharedObject in interface PersistenceInput

Throws:

IOException

readPersistentObjectId

public long readPersistentObjectId()
                            throws IOException

Specified by:

readPersistentObjectId in interface PersistenceInput

Throws:

IOException

readPersistentObject

public PersistenceCapable readPersistentObject()
                                        throws IOException

Specified by:

readPersistentObject in interface PersistenceInput

Throws:

IOException

beginArray

public int beginArray()
               throws IOException

Specified by:

beginArray in interface PersistenceInput

Throws:

IOException

beginComponent

public boolean beginComponent(ManageableType.ArrayComponent c,
 int index)
                       throws IOException

Specified by:

beginComponent in interface PersistenceInput

Throws:

IOException

endComponent

public void endComponent()

Specified by:

endComponent in interface PersistenceInput

endArray

public void endArray()

Specified by:

endArray in interface PersistenceInput

beginManaged

public ManageableType beginManaged()
                            throws IOException

Specified by:

beginManaged in interface PersistenceInput

Throws:

IOException

replaceType

protected String replaceType(String type)

getManagedField

protected ManageableType.Field getManagedField(ManageableType t,
 String name)

areFieldsProvided

public boolean areFieldsProvided()

Specified by:

areFieldsProvided in interface PersistenceInput

beginField

public ManageableType.Field beginField(ManageableType type,
 ManageableType.Field field)
                                throws IOException

Specified by:

beginField in interface PersistenceInput

Throws:

IOException

endField

public void endField()

Specified by:

endField in interface PersistenceInput

endManaged

public void endManaged()
                throws IOException

Specified by:

endManaged in interface PersistenceInput

Throws:

IOException

setNested

public void setNested(boolean nested)

Specified by:

setNested in interface PersistenceInput

readElements

public final void readElements(PersistenceCapable object,
 SAXElement parent)
                        throws SAXException

Throws:

SAXException

readAttribute

public final void readAttribute(PersistenceCapable object,
 String uri,
 String name,
 String value)
                         throws SAXException

Throws:

SAXException

valueOf

public void valueOf(Manageable object,
 String value)

Deserializes a string into an existing object. The string must have been generated by XMLPersistenceWriter.toString(Manageable) with an object argument of the same class.

Parameters:

object - the object's content will be set using the serialized description in value

value - the serialized description of the object

valueOf

public Object valueOf(Type type,
 String s)
               throws InstantiationException,
IllegalAccessException,
InvocationTargetException,
ClassNotFoundException

Deserializes a string into an object of the given type. The string must have been generated by XMLPersistenceWriter.toString(Type, Object) with the same type as argument.

Parameters:

type - the type of the object to deserialize

s - the serialized description of the object

Returns:

deserialized object

Throws:

InstantiationException

IllegalAccessException

InvocationTargetException

ClassNotFoundException

resolve

public void resolve()

addNestedObjectToResolve

public void addNestedObjectToResolve(Object ref)

This list hold the objects that contains a node in their serialization and which could not be properly resolved. (Usually because the object a map/list in the metagraph and the node is in the main graph). Such object should not be used but well.

resolveId

public PersistenceCapable resolveId(long inputId)

Specified by:

resolveId in interface PersistenceInput

peek

public char peek()
          throws IOException

Specified by:

peek in interface PersistenceInput

Throws:

IOException

isSetToBeResolved

public boolean isSetToBeResolved(long nid)