com.neurosys.etl.common

Class FilterChain

java.lang.Object

com.neurosys.etl.common.FilterChain

All Implemented Interfaces:

Chain<Object,Boolean>, org.apache.commons.collections.Predicate

Direct Known Subclasses:

WorksheetFilterChain

public class FilterChain
extends Object
implements org.apache.commons.collections.Predicate, Chain<Object,Boolean>

Allow chaining of multiple Predicates

Author:

Arjun Dhar

Constructor Summary

Constructors

Constructor and Description
FilterChain()
FilterChain(List<org.apache.commons.collections.Predicate> filters)
FilterChain(org.apache.commons.collections.Predicate filter)

Method Summary

Modifier and Type	Method and Description
Boolean	chain(Object t)
boolean	evaluate(Object object) Return false the evaluation fails and the tuple is to be filtered out
List<org.apache.commons.collections.Predicate>	getFilters()
List<? extends org.apache.commons.collections.Predicate>	getProcessors() Gets the List of processors in the chain
void	setFilters(List<org.apache.commons.collections.Predicate> filters)

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterChain

public FilterChain()

FilterChain

public FilterChain(List<org.apache.commons.collections.Predicate> filters)

FilterChain

public FilterChain(org.apache.commons.collections.Predicate filter)

Method Detail

evaluate

public boolean evaluate(Object object)

Return false the evaluation fails and the tuple is to be filtered out

Specified by:

evaluate in interface org.apache.commons.collections.Predicate

getFilters

public List<org.apache.commons.collections.Predicate> getFilters()

setFilters

public void setFilters(List<org.apache.commons.collections.Predicate> filters)

chain

public Boolean chain(Object t)

Specified by:

chain in interface Chain<Object,Boolean>

getProcessors

public List<? extends org.apache.commons.collections.Predicate> getProcessors()

Description copied from interface: Chain

Gets the List of processors in the chain

Specified by:

getProcessors in interface Chain<Object,Boolean>

Returns: