wt.fc
Class BasicObjectVector

java.lang.Object
  wt.fc.BasicObjectVector

All Implemented Interfaces:

Externalizable, ObjectVectorIfc, ResultProcessor, Serializable

Direct Known Subclasses:

ObjectSetVector, ObjectVector

public abstract class BasicObjectVector

extends Object

implements ObjectVectorIfc, Externalizable

This class implments a basic vector of objects and is used to hold query results.

Supported API: false

Extendable: false

See Also:

Serialized Form

Field Summary

private static String	CLASSNAME
static long	EXTERNALIZATION_VERSION_UID
protected static long	OLD_FORMAT_VERSION_UID
protected static long	R51_FORMAT_VERSION_UID
protected static long	R7_FORMAT_VERSION_UID
private static String	RESOURCE
(package private) static long	serialVersionUID
protected Vector	typedVector

Constructor Summary

BasicObjectVector()

Method Summary

abstract void	addElement(Object anObj) Supported API: false
void	append(ObjectVectorIfc oV) Append an object vector to this object vector.
boolean	contains(Object anObj) Test if the specified object is a component of this object vector.
Enumeration	elements() Return an Enumeration of the components of this object vector.
Object	firstElement() Return the first object in the object vector.
Vector	getVector() Supported API: false
boolean	isEmpty() Test if the object vector has no object.
Object	lastElement() Return the last object in the object vector.
abstract void	makeNonPersistent() Supported API: false
protected void	prepareForExternalization() Hook to allow object vectors to do any work prior to externalization.
void	readExternal(ObjectInput input) Reads the non-transient fields of this class from an external source.
private boolean	readOldVersion(ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source, which is not the current version.
protected boolean	readVersion(BasicObjectVector thisObject, ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source.
void	removeAllElements() Remove all objects from the object vector and set the size to zero.
abstract void	removeElement(Object anObj) Supported API: false
int	size() Return the number of objects in this Object Vector.
void	writeExternal(ObjectOutput output) Writes the non-transient fields of this class to an external source.

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

EXTERNALIZATION_VERSION_UID

public static final long EXTERNALIZATION_VERSION_UID

See Also:

Constant Field Values

OLD_FORMAT_VERSION_UID

protected static final long OLD_FORMAT_VERSION_UID

See Also:

Constant Field Values

typedVector

protected Vector typedVector

R51_FORMAT_VERSION_UID

protected static final long R51_FORMAT_VERSION_UID

See Also:

Constant Field Values

R7_FORMAT_VERSION_UID

protected static final long R7_FORMAT_VERSION_UID

See Also:

Constant Field Values

Constructor Detail

BasicObjectVector

public BasicObjectVector()

Method Detail

writeExternal

public void writeExternal(ObjectOutput output)
                   throws IOException

Writes the non-transient fields of this class to an external source.

Supported API: false

Specified by:

writeExternal in interface Externalizable

Parameters:

output -

Throws:

IOException

readExternal

public void readExternal(ObjectInput input)
                  throws IOException,
                         ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Specified by:

readExternal in interface Externalizable

Parameters:

input -

Throws:

IOException

ClassNotFoundException

readVersion

protected boolean readVersion(BasicObjectVector thisObject,
                              ObjectInput input,
                              long readSerialVersionUID,
                              boolean passThrough,
                              boolean superDone)
                       throws IOException,
                              ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Parameters:

thisObject -

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

readOldVersion

private boolean readOldVersion(ObjectInput input,
                               long readSerialVersionUID,
                               boolean passThrough,
                               boolean superDone)
                        throws IOException,
                               ClassNotFoundException

Reads the non-transient fields of this class from an external source, which is not the current version.

Parameters:

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

addElement

public abstract void addElement(Object anObj)

Supported API: false

Specified by:

addElement in interface ResultProcessor

Parameters:

anObj -

removeElement

public abstract void removeElement(Object anObj)

Supported API: false

Specified by:

removeElement in interface ObjectVectorIfc

Parameters:

anObj -

makeNonPersistent

public abstract void makeNonPersistent()

Supported API: false

Specified by:

makeNonPersistent in interface ObjectVectorIfc

getVector

public final Vector getVector()

Supported API: false

Specified by:

getVector in interface ObjectVectorIfc

Returns:

Vector

prepareForExternalization

protected void prepareForExternalization()
                                  throws WTException

Hook to allow object vectors to do any work prior to externalization. This is needed since QueryResults do a custom externalization of ObjectVectors.

Supported API: false

Throws:

WTException

size

public int size()

Return the number of objects in this Object Vector.

Supported API: false

Specified by:

size in interface ResultProcessor

Returns:

int

removeAllElements

public void removeAllElements()

Remove all objects from the object vector and set the size to zero.

Supported API: false

Specified by:

removeAllElements in interface ObjectVectorIfc

firstElement

public Object firstElement()

Return the first object in the object vector.

Supported API: false

Specified by:

firstElement in interface ObjectVectorIfc

Returns:

Object

lastElement

public Object lastElement()

Return the last object in the object vector.

Supported API: false

Specified by:

lastElement in interface ObjectVectorIfc

Returns:

Object

isEmpty

public boolean isEmpty()

Test if the object vector has no object.

Supported API: false

Specified by:

isEmpty in interface ObjectVectorIfc

Returns:

boolean

contains

public boolean contains(Object anObj)

Test if the specified object is a component of this object vector.

Supported API: false

Specified by:

contains in interface ObjectVectorIfc

Parameters:

anObj -

Returns:

boolean

append

public void append(ObjectVectorIfc oV)

Append an object vector to this object vector.

Supported API: false

Specified by:

append in interface ObjectVectorIfc

Parameters:

oV -

elements

public final Enumeration elements()

Return an Enumeration of the components of this object vector.

Supported API: false

Specified by:

elements in interface ObjectVectorIfc

Returns:

Enumeration