com.db4o.internal.query.processor

Class QCandidate

java.lang.Object

com.db4o.foundation.Tree<java.lang.Integer>

com.db4o.internal.TreeInt

com.db4o.internal.query.processor.QCandidate

All Implemented Interfaces:

DeepClone, ShallowClone, Visitable<java.lang.Integer>, Readable, ReadWriteable, Candidate

public class QCandidate
extends TreeInt
implements Candidate

Represents an actual object in the database. Forms a tree structure, indexed by id. Can have dependents that are doNotInclude'd in the query result when this is doNotInclude'd.

Field Summary

Fields inherited from class com.db4o.internal.TreeInt

_key

Fields inherited from class com.db4o.foundation.Tree

_preceding, _size, _subsequent

Constructor Summary

Constructors

Constructor and Description
QCandidate(QCandidates candidates, java.lang.Object member, int id)

Method Summary

Methods

Modifier and Type	Method and Description
void	classMetadata(ClassMetadata classMetadata)
boolean	duplicates()
java.lang.Object	getObject() returns the persistent object that is represented by this query Candidate.
boolean	include()
void	include(boolean flag) For external interface use only.
ObjectContainer	objectContainer() returns the ObjectContainer the Candidate object is stored in.
Tree	onAttemptToAddDuplicate(Tree oldNode)
java.lang.String	readString(ByteArrayBuffer buffer)
java.lang.Object	shallowClone()
java.lang.String	toString()

Methods inherited from class com.db4o.internal.TreeInt

add, addAll, compare, equals, find, find, key, marshalledLength, marshalledLength, marshalledLength, ownLength, read, removeLike, shallowCloneInternal, toQCandidate, write, write, write

Methods inherited from class com.db4o.foundation.Tree

accept, add, add, addedOrExisting, balance, balanceCheckNulls, calculateSize, deepClone, deepClone, filter, find, find, findGreaterOrEqual, findSmaller, first, last, last, nodes, ownSize, remove, removeChildren, removeFirst, removeLike, removeLike, removeNode, root, rotateLeft, rotateRight, setSizeOwn, setSizeOwnPlus, setSizeOwnPlus, setSizeOwnPreceding, setSizeOwnPrecedingSubsequent, setSizeOwnSubsequent, size, size, traverse, traverse, traverse, traverseFromLeaves, wasAddedToTree

Methods inherited from class java.lang.Object

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

Constructor Detail

QCandidate

public QCandidate(QCandidates candidates,
          java.lang.Object member,
          int id)

Method Detail

shallowClone

public java.lang.Object shallowClone()

Specified by:

shallowClone in interface ShallowClone

Overrides:

shallowClone in class TreeInt

objectContainer

public ObjectContainer objectContainer()

Description copied from interface: Candidate

returns the ObjectContainer the Candidate object is stored in.

Specified by:

objectContainer in interface Candidate

Returns:

the ObjectContainer

getObject

public java.lang.Object getObject()

Description copied from interface: Candidate

returns the persistent object that is represented by this query Candidate.

Specified by:

getObject in interface Candidate

Returns:

Object the persistent object.

readString

public java.lang.String readString(ByteArrayBuffer buffer)

include

public boolean include()

include

public void include(boolean flag)

For external interface use only. Call doNotInclude() internally so dependancies can be checked.

Specified by:

include in interface Candidate

Parameters:

flag - inclusion.

onAttemptToAddDuplicate

public Tree onAttemptToAddDuplicate(Tree oldNode)

Overrides:

onAttemptToAddDuplicate in class Tree<java.lang.Integer>

toString

public java.lang.String toString()

Overrides:

toString in class TreeInt

duplicates

public boolean duplicates()

Overrides:

duplicates in class TreeInt

classMetadata

public void classMetadata(ClassMetadata classMetadata)