ch.elca.dependency.graph
Class Filter

java.lang.Object
  |
  +--ch.elca.dependency.graph.AbstractGraphProcessor
        |
        +--ch.elca.dependency.graph.Filter

All Implemented Interfaces:

GraphProcessor

public class Filter

extends AbstractGraphProcessor

A Filter is responsible for filtering Nodes from a Graph.

Version:

1.0-beta

Author:

Pawel Kowalski

See Also:

Graph, Node

Field Summary

protected boolean	m_noRegexp A flag, telling whether the specified regular expression could be successfully used for building a RE Program.
protected org.apache.regexp.RE	m_regexp A RE (regular expression) associated with this Aggregator.
protected java.lang.String	m_regexpString A regexp String associated with this Aggregator.

Fields inherited from class ch.elca.dependency.graph.AbstractGraphProcessor

m_name

Constructor Summary

Filter()
Creates a new Filter instance.

Filter(java.lang.String name, java.lang.String regexpString)
Creates a new Filter instance with a name and a String used to be used for building a RE (regular expression program).

Method Summary

java.lang.String	getRegexp() Get the regexp used to filter nodes.
Graph	process(Graph graph) Filter nodes accordingl to a regexp.
void	setRegexp(java.lang.String regexpString) Set a regular expression for filtering nodes.

Methods inherited from class ch.elca.dependency.graph.AbstractGraphProcessor

getName, setName, toString

Methods inherited from class java.lang.Object

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

Field Detail

m_regexpString

protected java.lang.String m_regexpString

A regexp String associated with this Aggregator.

m_regexp

protected org.apache.regexp.RE m_regexp

A RE (regular expression) associated with this Aggregator.

m_noRegexp

protected boolean m_noRegexp

A flag, telling whether the specified regular expression could be successfully used for building a RE Program.

Constructor Detail

Filter

public Filter()

Creates a new Filter instance.

Filter

public Filter(java.lang.String name,
              java.lang.String regexpString)

Creates a new Filter instance with a name and a String used to be used for building a RE (regular expression program).

Parameters:

name - a String value

regexpString - a String value

See Also:

gnu.regexp.RE

Method Detail

setRegexp

public void setRegexp(java.lang.String regexpString)

Set a regular expression for filtering nodes.

Parameters:

regexpString - a String value

getRegexp

public java.lang.String getRegexp()

Get the regexp used to filter nodes.

Returns:

a String value

process

public Graph process(Graph graph)

Filter nodes accordingl to a regexp. This is an Implementation of the abstract method inherited from the AbstractGraphProcessor.

Parameters:

graph - a Graph value

Returns:

a Graph value

See Also:

gnu.regexp.RE