y25.base
Class GraphList

java.lang.Object
  y.base.YList
      y25.base.GraphList

All Implemented Interfaces:

Collection

public class GraphList

extends YList

Specialized list implementation for instances of type Graph.

Iterating over the elements of this list is accomplished by retrieving a GraphCursor via the method graphs (see the GraphCursor documentation for an example).

Nested Class Summary

Nested classes inherited from class y.base.YList

YList.ListCursorImpl

Constructor Summary

GraphList()
Creates an empty graph list.

GraphList(Graph graph)
Creates a list that is initialized with a single graph provided.

GraphList(Graph[] graphs)
Creates a list that is initialized with the graphs provided by the given array of graphs.

GraphList(GraphCursor gc)
Creates a list that is initialized with the graphs provided by the given GraphCursor object.

GraphList(GraphCursor gc, DataProvider predicate)
Creates a list that is initialized with those graphs from the given GraphCursor object for which the given data provider returns true upon calling its getBool method.

GraphList(Iterator it)
Creates a list that is initialized with the elements provided by the given Iterator object.

Method Summary

Graph	firstGraph() Returns the first graph in this list, or null when the list is empty.
GraphCursor	graphs() Returns a graph cursor for the graphs.
Graph	lastGraph() Returns the last graph in this list, or null when the list is empty.

Methods inherited from class y.base.YList

add, addAll, addAll, addFirst, addFirstCell, addLast, addLastCell, clear, contains, containsAll, cursor, cyclicPred, cyclicSucc, elementAt, findCell, first, firstCell, getInfo, indexOf, insertAfter, insertBefore, insertCellAfter, insertCellBefore, isEmpty, iterator, last, lastCell, peek, pop, popLast, predCell, push, remove, removeAll, removeAt, removeCell, retainAll, reverse, setInfo, size, sort, sort, splice, succCell, toArray, toArray, toString, toVector

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

equals, hashCode

Constructor Detail

GraphList

public GraphList()

Creates an empty graph list.

GraphList

public GraphList(Graph graph)

Creates a list that is initialized with a single graph provided.

GraphList

public GraphList(Graph[] graphs)

Creates a list that is initialized with the graphs provided by the given array of graphs.

GraphList

public GraphList(GraphCursor gc)

Creates a list that is initialized with the graphs provided by the given GraphCursor object.

GraphList

public GraphList(GraphCursor gc,
                 DataProvider predicate)

Creates a list that is initialized with those graphs from the given GraphCursor object for which the given data provider returns true upon calling its getBool method.

Parameters:

gc - A graph cursor providing graphs that should be added to this list.

predicate - A data provider that acts as a inclusion predicate for each graph accessible by the given graph cursor.

GraphList

public GraphList(Iterator it)

Creates a list that is initialized with the elements provided by the given Iterator object.

Method Detail

firstGraph

public Graph firstGraph()

Returns the first graph in this list, or null when the list is empty.

lastGraph

public Graph lastGraph()

Returns the last graph in this list, or null when the list is empty.

graphs

public GraphCursor graphs()

Returns a graph cursor for the graphs.