helma.objectmodel.db
Class SubnodeList

java.lang.Object
  extended by helma.objectmodel.db.SubnodeList
All Implemented Interfaces:
java.io.Serializable
Direct Known Subclasses:
SegmentedSubnodeList

public class SubnodeList
extends java.lang.Object
implements java.io.Serializable

Container implementation for subnode collections.

See Also:
Serialized Form

Field Summary
protected  long lastSubnodeChange
           
protected  long lastSubnodeFetch
           
protected  java.util.List list
           
protected  Node node
           
 
Constructor Summary
SubnodeList(Node node)
          Creates a new subnode list
 
Method Summary
 void add(int idx, NodeHandle handle)
          Adds the specified object to the list at the given position
 boolean add(NodeHandle handle)
          Adds the specified object to this list performing custom ordering
 boolean contains(java.lang.Object object)
           
 NodeHandle get(int index)
           
protected  long getLastSubnodeChange()
          Compute a serial number indicating the last change in subnode collection
 Node getNode(int index)
           
protected  DbMapping getSubnodeMapping()
           
protected  Relation getSubnodeRelation()
           
protected  boolean hasRelationalNodes()
           
 int indexOf(java.lang.Object object)
           
protected  void markAsChanged()
           
protected  void prefetch(int start, int length)
           
 java.lang.Object remove(int idx)
          remove the object specified by the given index-position
 boolean remove(java.lang.Object obj)
          remove the given Object from this List
 int size()
          Return the size of the list.
 java.lang.Object[] toArray()
           
protected  void update()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

node

protected Node node

list

protected java.util.List list

lastSubnodeFetch

protected transient long lastSubnodeFetch

lastSubnodeChange

protected transient long lastSubnodeChange
Constructor Detail

SubnodeList

public SubnodeList(Node node)
Creates a new subnode list

Parameters:
node - the node we belong to
Method Detail

add

public boolean add(NodeHandle handle)
Adds the specified object to this list performing custom ordering

Parameters:
handle - element to be inserted.

add

public void add(int idx,
                NodeHandle handle)
Adds the specified object to the list at the given position

Parameters:
idx - the index to insert the element at
handle - the object to add

get

public NodeHandle get(int index)

getNode

public Node getNode(int index)

contains

public boolean contains(java.lang.Object object)

indexOf

public int indexOf(java.lang.Object object)

remove

public java.lang.Object remove(int idx)
remove the object specified by the given index-position

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

Parameters:
obj - the NodeHandle to remove

toArray

public java.lang.Object[] toArray()

size

public int size()
Return the size of the list.

Returns:
the list size

update

protected void update()

prefetch

protected void prefetch(int start,
                        int length)

getLastSubnodeChange

protected long getLastSubnodeChange()
Compute a serial number indicating the last change in subnode collection

Returns:
a serial number that increases with each subnode change

markAsChanged

protected void markAsChanged()

hasRelationalNodes

protected boolean hasRelationalNodes()

getSubnodeMapping

protected DbMapping getSubnodeMapping()

getSubnodeRelation

protected Relation getSubnodeRelation()


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