helma.objectmodel.db
Class UpdateableSubnodeList

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<E>
          java.util.ArrayList
              helma.objectmodel.db.SubnodeList
                  helma.objectmodel.db.OrderedSubnodeList
                      helma.objectmodel.db.UpdateableSubnodeList

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable, java.util.Collection, java.util.List, java.util.RandomAccess

public class UpdateableSubnodeList
extends OrderedSubnodeList

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

UpdateableSubnodeList(WrappedNodeManager nmgr, Relation rel)
Construct a new UpdateableSubnodeList.

Method Summary

void	add(int idx, java.lang.Object obj) add a new node at the given index position and check if the borders for the updateCriterias have changed NOTE: this overrules the ordering (should we disallowe this?)
boolean	add(java.lang.Object obj) add a new node honoring the Nodes SQL-Order and check if the borders for the updateCriterias have changed by adding this node
boolean	addAll(java.util.Collection col) if the wrapped List is an instance of OrderedSubnodeList, the sortIn() method will be used.
java.lang.String	getUpdateCriteria() render the criterias for fetching new nodes, which have been added to the relational db.
void	rebuildBorders() Rebuild all borders for all the updateCriterias
java.lang.Object	remove(int idx) remove the object specified by the given index-position and update the borders if neccesary
boolean	remove(java.lang.Object obj) remove the given Object from this List and update the borders if neccesary
boolean	removeAll(java.util.Collection c) remove all elements conteined inside the specified collection from this List and update the borders if neccesary
boolean	retainAll(java.util.Collection c) remove all elements from this List, which are NOT specified inside the specified Collecion and update the borders if neccesary
java.lang.Object	set(int idx, java.lang.Object obj) checks if the borders have to be rebuilt because of the removed or the added NodeHandle.

Methods inherited from class helma.objectmodel.db.OrderedSubnodeList

addSorted, compareNumericString, getOrderedView, sortIn, sortIn

Methods inherited from class helma.objectmodel.db.SubnodeList

addToViews, removeFromViews

Methods inherited from class java.util.ArrayList

addAll, clear, clone, contains, ensureCapacity, get, indexOf, isEmpty, lastIndexOf, removeRange, size, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractList

equals, hashCode, iterator, listIterator, listIterator, subList

Methods inherited from class java.util.AbstractCollection

containsAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

containsAll, equals, hashCode, iterator, listIterator, listIterator, subList

Constructor Detail

UpdateableSubnodeList

public UpdateableSubnodeList(WrappedNodeManager nmgr,
                             Relation rel)

Construct a new UpdateableSubnodeList. The Relation is needed to get the information about the ORDERING and the UPDATECriteriaS

Method Detail

getUpdateCriteria

public java.lang.String getUpdateCriteria()
                                   throws java.sql.SQLException,
                                          java.lang.ClassNotFoundException

render the criterias for fetching new nodes, which have been added to the relational db.

Returns:

the sql-criteria for updating this subnodelist

Throws:

java.lang.ClassNotFoundException - @see helma.objectmodel.db.DbMapping#getColumn(String)

java.sql.SQLException - @see helma.objectmodel.db.DbMapping#getColumn @see helma.objectmodel.db.DbMapping#needsQuotes(String)

add

public boolean add(java.lang.Object obj)

add a new node honoring the Nodes SQL-Order and check if the borders for the updateCriterias have changed by adding this node

Specified by:

add in interface java.util.Collection

Specified by:

add in interface java.util.List

Overrides:

add in class OrderedSubnodeList

Parameters:

obj - the object to add

add

public void add(int idx,
                java.lang.Object obj)

add a new node at the given index position and check if the borders for the updateCriterias have changed NOTE: this overrules the ordering (should we disallowe this?)

Specified by:

add in interface java.util.List

Overrides:

add in class OrderedSubnodeList

Parameters:

idx - the index-position this node should be added at

obj - the NodeHandle of the node which should be added

rebuildBorders

public void rebuildBorders()

Rebuild all borders for all the updateCriterias

remove

public java.lang.Object remove(int idx)

remove the object specified by the given index-position and update the borders if neccesary

Specified by:

remove in interface java.util.List

Overrides:

remove in class SubnodeList

Parameters:

idx - the index-position of the NodeHandle to remove

remove

public boolean remove(java.lang.Object obj)

remove the given Object from this List and update the borders if neccesary

Specified by:

remove in interface java.util.Collection

Specified by:

remove in interface java.util.List

Overrides:

remove in class SubnodeList

Parameters:

obj - the NodeHandle to remove

removeAll

public boolean removeAll(java.util.Collection c)

remove all elements conteined inside the specified collection from this List and update the borders if neccesary

Specified by:

removeAll in interface java.util.Collection

Specified by:

removeAll in interface java.util.List

Overrides:

removeAll in class OrderedSubnodeList

Parameters:

c - the Collection containing all Objects to remove from this List

Returns:

true if the List has been modified

retainAll

public boolean retainAll(java.util.Collection c)

remove all elements from this List, which are NOT specified inside the specified Collecion and update the borders if neccesary

Specified by:

retainAll in interface java.util.Collection

Specified by:

retainAll in interface java.util.List

Overrides:

retainAll in class OrderedSubnodeList

Parameters:

c - the Collection containing all Objects to keep on the List

Returns:

true if the List has been modified

set

public java.lang.Object set(int idx,
                            java.lang.Object obj)

checks if the borders have to be rebuilt because of the removed or the added NodeHandle.

Specified by:

set in interface java.util.List

Overrides:

set in class java.util.ArrayList

addAll

public boolean addAll(java.util.Collection col)

if the wrapped List is an instance of OrderedSubnodeList, the sortIn() method will be used.

Specified by:

addAll in interface java.util.Collection

Specified by:

addAll in interface java.util.List

Overrides:

addAll in class OrderedSubnodeList