org.mmbase.bridge.implementation
Class VirtualNodeManager

java.lang.Object
  org.mmbase.bridge.implementation.BasicNode
      org.mmbase.bridge.implementation.BasicNodeManager
          org.mmbase.bridge.implementation.VirtualNodeManager

All Implemented Interfaces:

java.lang.Comparable, Node, NodeManager, SizeMeasurable

public class VirtualNodeManager

extends BasicNodeManager

This class represents a virtual node type information object. It has the same functionality as BasicNodeType, but it's nodes are vitrtual - that is, constructed based on the results of a search over multiple node managers. As such, it is not possible to search on this node type, nor to create new nodes. It's sole function is to provide a type definition for the results of a search.

Version:

$Id: VirtualNodeManager.java,v 1.19 2004/01/16 14:51:57 michiel Exp $

Author:

Rob Vermeulen, Pierre van Rooden

Field Summary

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

builder, fieldTypes, queryFields

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

account, ACTION_COMMIT, ACTION_CREATE, ACTION_DELETE, ACTION_EDIT, cloud, isnew, mmb, nodeManager, noderef, temporaryNodeId

Fields inherited from interface org.mmbase.bridge.NodeManager

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

Method Summary

Node	createNode() Gets a new (initialized) node.
NodeList	getList(java.lang.String where, java.lang.String sorted, boolean direction) Search nodes of this type.
protected void	init() Initializes the node.
protected void	initManager() Initializes the NodeManager

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

commit, createQuery, delete, getAllowedRelations, getAllowedRelations, getAllowedRelations, getDescendants, getDescription, getDescription, getField, getFields, getFields, getGUIName, getGUIName, getGUIName, getInfo, getInfo, getList, getList, getList, getList, getName, getParent, getProperties, getProperty, getQueryFields, hasField, mayCreateNode

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

cancel, compareTo, countRelatedNodes, countRelatedNodes, countRelations, countRelations, createAlias, createRelation, delete, deleteAlias, deleteRelations, deleteRelations, edit, equals, finalize, getAliases, getBooleanValue, getByteSize, getByteSize, getByteValue, getCloud, getContext, getDoubleValue, getFieldValue, getFieldValue, getFloatValue, getFunctionValue, getIntValue, getLongValue, getNode, getNodeManager, getNodeValue, getNumber, getObjectValue, getPossibleContexts, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelations, getRelations, getRelations, getRelations, getRelations, getStringValue, getValue, getXMLValue, getXMLValue, hashCode, hasRelations, invalidateNode, isNodeManager, isRelation, isRelationManager, mayChangeContext, mayDelete, mayWrite, setBooleanValue, setByteValue, setContext, setDoubleValue, setFloatValue, setIntValue, setLongValue, setNode, setNodeValue, setObjectValue, setStringValue, setValue, setValueWithoutChecks, setValueWithoutProcess, setXMLValue, toNodeManager, toRelation, toRelationManager, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mmbase.bridge.NodeManager

getCloud

Methods inherited from interface org.mmbase.bridge.Node

cancel, countRelatedNodes, countRelatedNodes, countRelations, countRelations, createAlias, createRelation, delete, deleteAlias, deleteRelations, deleteRelations, getAliases, getBooleanValue, getByteValue, getContext, getDoubleValue, getFieldValue, getFieldValue, getFloatValue, getFunctionValue, getIntValue, getLongValue, getNodeManager, getNodeValue, getNumber, getObjectValue, getPossibleContexts, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelatedNodes, getRelations, getRelations, getRelations, getRelations, getRelations, getStringValue, getValue, getXMLValue, getXMLValue, hasRelations, isNodeManager, isRelation, isRelationManager, mayChangeContext, mayDelete, mayWrite, setBooleanValue, setByteValue, setContext, setDoubleValue, setFloatValue, setIntValue, setLongValue, setNodeValue, setObjectValue, setStringValue, setValue, setXMLValue, toNodeManager, toRelation, toRelationManager, toString

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

init

protected void init()

Initializes the node. Sets nodemanager to typedef, and creates a virtual node for this manager.

Overrides:

init in class BasicNode

initManager

protected void initManager()

Initializes the NodeManager

Overrides:

initManager in class BasicNodeManager

createNode

public Node createNode()

Gets a new (initialized) node. Throws an exception since this type is virtual, and creating nodes is not allowed.

Specified by:

createNode in interface NodeManager

Overrides:

createNode in class BasicNodeManager

getList

public NodeList getList(java.lang.String where,
                        java.lang.String sorted,
                        boolean direction)

Search nodes of this type. Throws an exception since this type is virtual, and searching is not allowed.