com.ibm.tivoli.maximo.report.expr

Class Collector

java.lang.Object

com.ibm.tivoli.maximo.report.expr.Collector

All Implemented Interfaces:

Node.Visitor

Direct Known Subclasses:

TypeCollector

public abstract class Collector
extends java.lang.Object
implements Node.Visitor

A collect is a Node.Visitor that will collect items if they are accepted by the collector's accept() method. Collectors are used to traverse the parsed Node tree and collect items as it goes by evaluating each node against the collecter's accpet() method. Subclasses simply need to override the accept(Node) method.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Collector.Mode

Nested classes/interfaces inherited from interface com.ibm.tivoli.maximo.report.expr.Node.Visitor

Node.Visitor.State, Node.Visitor.Status

Field Summary

Fields

Modifier and Type	Field and Description
protected Collector.Mode	mode
protected java.util.List	nodes

Constructor Summary

Constructors

Constructor and Description
Collector(Collector.Mode mode)

Method Summary

Modifier and Type	Method and Description
abstract boolean	accept(Node n) Return true if this node can be accepted by the Collector
protected void	addNode(Node n)
Node	first() Return the first collected node
java.util.List	getNodes()
Node.Visitor.Status	visit(Node n, Node.Visitor.State state)

Methods inherited from class java.lang.Object

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

Field Detail

nodes

protected java.util.List nodes

mode

protected Collector.Mode mode

Constructor Detail

Collector

public Collector(Collector.Mode mode)

Method Detail

getNodes

public java.util.List getNodes()

addNode

protected void addNode(Node n)

visit

public Node.Visitor.Status visit(Node n,
                                 Node.Visitor.State state)
                          throws java.rmi.RemoteException,
                                 MXException

Specified by:

visit in interface Node.Visitor

Throws:

java.rmi.RemoteException

MXException

first

public Node first()

Return the first collected node

Returns:

accept

public abstract boolean accept(Node n)
                        throws java.rmi.RemoteException,
                               MXException

Return true if this node can be accepted by the Collector

Parameters:

n -

Returns:

Throws:

java.rmi.RemoteException

MXException