org.kuali.rice.krad.uif.container

Class ELCollectionFilter

java.lang.Object

org.kuali.rice.krad.uif.container.ELCollectionFilter

All Implemented Interfaces:

Serializable, Cloneable, Copyable, CollectionFilter

public class ELCollectionFilter
extends Object
implements CollectionFilter, Copyable

Collection filter that evaluates a configured el expression against each line

Author:

Kuali Rice Team (rice.collab@kuali.org)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ELCollectionFilter()

Method Summary

Modifier and Type	Method and Description
ELCollectionFilter	clone() Override Object.clone() to assign the public modifier.
List<Integer>	filter(View view, Object model, CollectionGroup collectionGroup) Iterates through the collection and evaluates the el expression in context of the line.
String	getExpression() Expression that will be evaluated for each line to determine whether the line should be filtered
void	setExpression(String expression) Setter for the expression to use for filtering

Methods inherited from class java.lang.Object

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

Constructor Detail

ELCollectionFilter

public ELCollectionFilter()

Method Detail

filter

public List<Integer> filter(View view,
                            Object model,
                            CollectionGroup collectionGroup)

Iterates through the collection and evaluates the el expression in context of the line. If the expression evaluates to true, the line will remain, else be filtered out

Specified by:

filter in interface CollectionFilter

Parameters:

view - - view instance for the collection group

model - - object containing the view data and from which the collection should be pulled/updated

collectionGroup - - collection group instance containing configuration for the collection

Returns:

the list that contains valid row indexes

See Also:

CollectionFilter.filter(org.kuali.rice.krad.uif.view.View, Object, CollectionGroup)

getExpression

public String getExpression()

Expression that will be evaluated for each line to determine whether the line should be filtered

If expression passes, the line will remain in the collection, otherwise be filtered out. The expression given should evaluate to a boolean

Returns:

valid el expression that evaluates to a boolean

setExpression

public void setExpression(String expression)

Setter for the expression to use for filtering

Parameters:

expression -

clone

public ELCollectionFilter clone()
                         throws CloneNotSupportedException

Description copied from interface: Copyable

Override Object.clone() to assign the public modifier.

Specified by:

clone in interface Copyable

Overrides:

clone in class Object

Returns:

Object.clone()

Throws:

CloneNotSupportedException - If Cloneable is not implemented. This should not be possible when using this interface.

See Also:

Copyable.clone()