org.mmbase.bridge.implementation
Class BasicRelationManager

java.lang.Object
  org.mmbase.bridge.util.AbstractNode
      org.mmbase.bridge.implementation.BasicNode
          org.mmbase.bridge.implementation.BasicNodeManager
              org.mmbase.bridge.implementation.BasicRelationManager

All Implemented Interfaces:

Comparable, Node, NodeManager, RelationManager, SizeMeasurable

public class BasicRelationManager

extends BasicNodeManager

implements RelationManager

Version:

$Id: BasicRelationManager.java,v 1.34 2005/12/27 22:14:14 michiel Exp $

Author:

Rob Vermeulen, Pierre van Rooden

Warning: No Java Documentation Available.

Nested Class Summary

Nested classes inherited from class org.mmbase.bridge.implementation.BasicNodeManager

BasicNodeManager.NodeAndId

Field Summary

MMObjectNode

relDefNode

Fields inherited from class org.mmbase.bridge.implementation.BasicNodeManager

builder, fieldTypes

Fields inherited from class org.mmbase.bridge.implementation.BasicNode

cloud, nodeManager, noderef

Fields inherited from class org.mmbase.bridge.util.AbstractNode

ACTION_COMMIT, ACTION_CREATE, ACTION_DELETE, ACTION_EDIT

Fields inherited from interface org.mmbase.bridge.RelationManager

BIDIRECTIONAL, UNIDIRECTIONAL

Fields inherited from interface org.mmbase.bridge.NodeManager

GUI_PLURAL, GUI_SINGULAR, ORDER_CREATE, ORDER_EDIT, ORDER_LIST, ORDER_NONE, ORDER_SEARCH

Method Summary

protected BasicNode	createBasicNode() BasicNodeManager is garantueed to return BasicNode's.
protected BasicRelation	createBasicRelation() BasicRelationManager is garantueed to create BasicRelations.
Relation	createRelation(Node sourceNode, Node destinationNode) Adds a relation from this type.
NodeManager	getDestinationManager() Retrieves the type of node that can act as the destination of a relation of this type.
int	getDirectionality() Retrieves the directionality for this type (the default assigned to a new relation).
String	getForwardGUIName() Retrieves the gui name (prompt) of the role from source to destination
String	getForwardRole() Retrieves the role of the source to the destination
String	getReciprocalGUIName() Retrieves the gui name (prompt) of the role from destination to source
String	getReciprocalRole() Retrieves the role of the destination to the source
RelationList	getRelations(Node node) Retrieves all the relations of this type from a given node.
NodeManager	getSourceManager() Retrieves the NodeManager of node that can act as the source of a relation of this type.
protected void	initManager() Initializes the NodeManager: determines the MMObjectBuilder from the passed node (reldef or typerel), and fills temporary variables to maintain status.
boolean	isRelationManager() Determine whether this Node is a RelationManager.
boolean	mayCreateRelation(Node sourceNode, Node destinationNode) Check if the current user may create a new relation of this type between the specified nodes.
protected void	setNodeManager(MMObjectNode node)
RelationManager	toRelationManager() Returns this as a RelationManager.

Methods inherited from class org.mmbase.bridge.implementation.BasicNodeManager

commit, createFieldList, createMMObjectNode, createNode, createNodeList, createQuery, createRelationList, delete, getAllowedRelations, getAllowedRelations, getAllowedRelations, getDescendants, getDescription, getDescription, getField, getFields, getFields, getFieldTypes, getFunctions, getGUIName, getGUIName, getGUIName, getInfo, getInfo, getList, getList, getList, getList, getName, getNodeFunction, getParent, getProperties, getProperty, hasField, isNodeManager, mayCreateNode, sync, toNodeManager

Methods inherited from class org.mmbase.bridge.implementation.BasicNode

cancel, countRelatedNodes, countRelatedNodes, createAlias, createFunctionValue, createParameters, deleteAlias, deleteRelations, edit, finalize, getAliases, getBooleanValue, getByteSize, getByteSize, getByteValue, getChanged, getCloud, getContext, getDateValue, getDoubleValue, getFloatValue, getInputStreamValue, getIntValue, getListValue, getLongValue, getNode, getNodeManager, getNodeValue, getNumber, getPossibleContexts, getRelatedNodes, getRelations, getRelations, getSize, getStringValue, getValueWithoutProcess, getXMLValue, hashCode, hasRelations, init, invalidateNode, isChanged, isChanged, isNew, isNull, mayChangeContext, mayDelete, mayWrite, setContext, setNode, setSize, setValueWithoutChecks, toNodeNumber, toString

Methods inherited from class org.mmbase.bridge.util.AbstractNode

compareTo, countRelations, countRelations, createRelation, delete, deleteRelations, equals, getFieldValue, getFieldValue, getFunction, getFunctionValue, getObjectValue, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelations, getRelations, getRelations, getValue, getXMLValue, isRelation, processCommit, setBooleanValue, setByteValue, setDateValue, setDoubleValue, setFloatValue, setInputStreamValue, setIntValue, setListValue, setLongValue, setNodeValue, setObjectValue, setStringValue, setValue, setValueWithoutProcess, setXMLValue, toRelation, validate

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.mmbase.bridge.RelationManager

createRelation

Methods inherited from interface org.mmbase.bridge.NodeManager

createFieldList, createNode, createNodeList, createQuery, createRelationList, getAllowedRelations, getAllowedRelations, getAllowedRelations, getCloud, getDescendants, getDescription, getDescription, getField, getFields, getFields, getGUIName, getGUIName, getGUIName, getInfo, getInfo, getList, getList, getList, getList, getName, getParent, getProperties, getProperty, hasField, mayCreateNode

Methods inherited from interface org.mmbase.bridge.Node

cancel, commit, countRelatedNodes, countRelatedNodes, countRelations, countRelations, createAlias, createParameters, delete, delete, deleteAlias, deleteRelations, deleteRelations, getAliases, getBooleanValue, getByteValue, getChanged, getContext, getDateValue, getDoubleValue, getFieldValue, getFieldValue, getFloatValue, getFunction, getFunctions, getFunctionValue, getInputStreamValue, getIntValue, getListValue, getLongValue, getNodeManager, getNodeValue, getNumber, getObjectValue, getPossibleContexts, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelations, getRelations, getRelations, getRelations, getRelations, getSize, getStringValue, getValue, getValueWithoutProcess, getXMLValue, getXMLValue, hasRelations, isChanged, isChanged, isNew, isNodeManager, isNull, isRelation, mayChangeContext, mayDelete, mayWrite, setBooleanValue, setByteValue, setContext, setDateValue, setDoubleValue, setFloatValue, setInputStreamValue, setIntValue, setListValue, setLongValue, setNodeValue, setObjectValue, setStringValue, setValue, setValueWithoutProcess, setXMLValue, toNodeManager, toRelation, toString, validate

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

relDefNode

public MMObjectNode relDefNode

Method Detail

isRelationManager

public final boolean isRelationManager()

Description copied from interface: Node

Determine whether this Node is a RelationManager.

Specified by:

isRelationManager in interface Node

Overrides:

isRelationManager in class AbstractNode

toRelationManager

public final RelationManager toRelationManager()

Description copied from interface: Node

Returns this as a RelationManager.

Specified by:

toRelationManager in interface Node

Overrides:

toRelationManager in class AbstractNode

initManager

protected void initManager()

Initializes the NodeManager: determines the MMObjectBuilder from the passed node (reldef or typerel), and fills temporary variables to maintain status.

Overrides:

initManager in class BasicNodeManager

setNodeManager

protected void setNodeManager(MMObjectNode node)

Overrides:

setNodeManager in class BasicNodeManager

getForwardRole

public String getForwardRole()

Description copied from interface: RelationManager

Retrieves the role of the source to the destination

Specified by:

getForwardRole in interface RelationManager

Returns:

the role as a String

getReciprocalRole

public String getReciprocalRole()

Description copied from interface: RelationManager

Retrieves the role of the destination to the source

Specified by:

getReciprocalRole in interface RelationManager

Returns:

the role as a String

getForwardGUIName

public String getForwardGUIName()

Description copied from interface: RelationManager

Retrieves the gui name (prompt) of the role from source to destination

Specified by:

getForwardGUIName in interface RelationManager

Returns:

the name as a String

getReciprocalGUIName

public String getReciprocalGUIName()

Description copied from interface: RelationManager

Retrieves the gui name (prompt) of the role from destination to source

Specified by:

getReciprocalGUIName in interface RelationManager

Returns:

the name as a String

getDirectionality

public int getDirectionality()

Description copied from interface: RelationManager

Retrieves the directionality for this type (the default assigned to a new relation).

Specified by:

getDirectionality in interface RelationManager

Returns:

one of the directionality constants

getSourceManager

public NodeManager getSourceManager()

Description copied from interface: RelationManager

Retrieves the NodeManager of node that can act as the source of a relation of this type.

Specified by:

getSourceManager in interface RelationManager

Returns:

the source NodeManager

getDestinationManager

public NodeManager getDestinationManager()

Description copied from interface: RelationManager

Retrieves the type of node that can act as the destination of a relation of this type.

Specified by:

getDestinationManager in interface RelationManager

Returns:

the destination NodeManager

createBasicNode

protected final BasicNode createBasicNode()

Description copied from class: BasicNodeManager

BasicNodeManager is garantueed to return BasicNode's. So extendsion must override this, and not BasicNodeManager.createNode()

Overrides:

createBasicNode in class BasicNodeManager

createBasicRelation

protected BasicRelation createBasicRelation()

BasicRelationManager is garantueed to create BasicRelations. Extension therefore most override this and not createBasicNode().

Since:

MMBase-1.8

createRelation

public Relation createRelation(Node sourceNode,
                               Node destinationNode)

Description copied from interface: RelationManager

Adds a relation from this type.

Specified by:

createRelation in interface RelationManager

Parameters:

sourceNode - the node from which you want to relate

destinationNode - the node to which you want to relate

Returns:

the added relation

getRelations

public RelationList getRelations(Node node)

Description copied from interface: RelationManager

Retrieves all the relations of this type from a given node.

Specified by:

getRelations in interface RelationManager

Parameters:

node - the node from which to give the relations

Returns:

a list of relations

mayCreateRelation

public boolean mayCreateRelation(Node sourceNode,
                                 Node destinationNode)

Description copied from interface: RelationManager

Check if the current user may create a new relation of this type between the specified nodes.

Specified by:

mayCreateRelation in interface RelationManager

Parameters:

sourceNode - source node of the relation

destinationNode - destination node of the relation

Returns:

Check if the current user may create a new relation of this type between the specified nodes.