com.clra.web
Class MemberSet

java.lang.Object
  |
  +--com.clra.web.MemberSet

All Implemented Interfaces:

INameList

public class MemberSet

extends Object

implements INameList

A JSP bean that provides ordered lists of MemberViews. This class is a thin wrapper around calls to MemberDBRead. In the future, it might add further value by caching and sorting views on the client side.

FIXME: this class is basically a list, not a set. A set hides duplicates, whereas a list does not. Rename this class.

FIXME: this class could be less tightly coupled to the GUI, by using String properties lowerBound and upperBound. If both lowerBound and upperBound are non-null, then select for lowerBound <= names < upperBound. If lowerBound is null, then select for names < upperBound. If upperBound is null, then select for lowerBound <= names. If both are null, throw an IllegalStateException.

In the current implementation, a list is created on the fly whenever a JSP is displayed, and the list is tossed after the page is written. For lists of 60 or so items, a page will update in 2 - 3 seconds when the app and web servers are lightly loaded. This is adequate performance, since most lists will be restricted by name, and therefore will contain roughly 40 (==300/8) items.

Version:

$Revision: 1.2 $ $Date: 2002/02/18 18:06:26 $

Author:

Rick Hall

Fields inherited from interface com.clra.web.INameList

AN_COMPARATOR, AN_GROUP, AN_ISRESTRICTED

Constructor Summary

MemberSet()
Prepares a restricted iterator for the current group and year

MemberSet(Integer group)
Prepares a restricted iterator for the specified group of the current year

Method Summary

Iterator	getAllActiveMembers() Deprecated.
ISerializableComparator	getComparator() Stubbed method that returns null
Integer	getGroup() Returns the group used by restricted iterations
Iterator	getIterator() Returns an iterator constructed to the current setting
Boolean	getRestricted() Returns a flag that indicates whether an iterator will be restricted to a particular group of names.
void	setComparator(ISerializableComparator comparator) Stubbed method that does nothing
void	setGroup(Integer group) Sets the month used by restricted iterations
void	setRestricted(Boolean restricted) Sets whether an iterator will be restricted to names within a within a group.

Methods inherited from class java.lang.Object

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

Constructor Detail

MemberSet

public MemberSet()
          throws WebException

Prepares a restricted iterator for the current group and year

MemberSet

public MemberSet(Integer group)
          throws WebException

Prepares a restricted iterator for the specified group of the current year

Method Detail

getRestricted

public Boolean getRestricted()

Returns a flag that indicates whether an iterator will be restricted to a particular group of names.

Specified by:

getRestricted in interface INameList

setRestricted

public void setRestricted(Boolean restricted)

Sets whether an iterator will be restricted to names within a within a group. A null values does not change the current restriction.

Specified by:

setRestricted in interface INameList

getGroup

public Integer getGroup()

Returns the group used by restricted iterations

Specified by:

getGroup in interface INameList

setGroup

public void setGroup(Integer group)

Sets the month used by restricted iterations

Specified by:

setGroup in interface INameList

getComparator

public ISerializableComparator getComparator()

Stubbed method that returns null

Specified by:

getComparator in interface INameList

setComparator

public void setComparator(ISerializableComparator comparator)

Stubbed method that does nothing

Specified by:

setComparator in interface INameList

getIterator

public Iterator getIterator()
                     throws WebException

Returns an iterator constructed to the current setting

Specified by:

getIterator in interface INameList

getAllActiveMembers

public Iterator getAllActiveMembers()
                             throws MemberException

Deprecated.

Finds all active members of the CLRA. Members are sorted by lastname-firstname (the natural comparator for members).