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com.clra.web
Class SessionSet  

java.lang.Object
  com.clra.web.SessionSet

All Implemented Interfaces:

IEventList

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public class SessionSet

extends java.lang.Object

implements IEventList

A JSP bean that provides ordered lists of SessionViews. This class is a thin wrapper around calls to RowingDBRead. 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.

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 month, and therefore will contain roughly 30 items.

See revision 1.10 and 1.11 for a flawed implementation of caching and sorting. See ../bugs/SEVERITY3_slow_sessionlist_2001.12.05a.txt for an analysis of the resulting bugs.

Version:

$Revision: 1.3 $ $Date: 2003/02/26 03:38:46 $

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Field Summary
private static java.lang.String	base
private  java.util.Calendar	calendar           Holds the value of the month and year for restricted iterations
private  java.lang.Boolean	restricted           Holds the restriction flag
private static org.apache.log4j.Category	theLog

 

Fields inherited from interface com.clra.web.IEventList

AN_COMPARATOR, AN_ISRESTRICTED, AN_MONTH, AN_YEAR

 

Constructor Summary

SessionSet()           Prepares a restricted iterator for the current month and year

SessionSet(java.lang.Integer month)           Prepares a restricted iterator for the specified month of the current year

SessionSet(java.lang.Integer month, java.lang.Integer year)           Prepares a restricted iterator for the specified month and year

 

Method Summary
com.clra.util.ISerializableComparator	getComparator()           Stubbed method that returns null
java.util.Iterator	getIterator()           Returns an iterator constructed to the current setting
java.lang.Integer	getMonth()           Returns the month used by restricted iterations
java.lang.Boolean	getRestricted()           Returns a flag that indicates whether an iterator will be restricted to events that are scheduled to start within a particular month and year.
java.lang.Integer	getYear()           Returns the year used by restricted iterations
void	setComparator(com.clra.util.ISerializableComparator comparator)           Stubbed method that does nothing
void	setMonth(java.lang.Integer month)           Sets the month used by restricted iterations
void	setRestricted(java.lang.Boolean restricted)           Sets whether an iterator will be restricted to events that start within a particular month and year.
void	setYear(java.lang.Integer year)           Sets the year used by restricted iterations

 

Methods inherited from class java.lang.Object

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

 

Field Detail

base

private static final java.lang.String base

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theLog

private static final org.apache.log4j.Category theLog

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restricted

private java.lang.Boolean restricted

Holds the restriction flag

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calendar

private final java.util.Calendar calendar

Holds the value of the month and year for restricted iterations

Constructor Detail

SessionSet

public SessionSet()
           throws WebException

Prepares a restricted iterator for the current month and year

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SessionSet

public SessionSet(java.lang.Integer month)
           throws WebException

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

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SessionSet

public SessionSet(java.lang.Integer month,
                  java.lang.Integer year)
           throws WebException

Prepares a restricted iterator for the specified month and year

Method Detail

getRestricted

public java.lang.Boolean getRestricted()

Returns a flag that indicates whether an iterator will be restricted to events that are scheduled to start within a particular month and year.

Specified by:

getRestricted in interface IEventList

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setRestricted

public void setRestricted(java.lang.Boolean restricted)

Sets whether an iterator will be restricted to events that start within a particular month and year. A null values does not change the current restriction.

Specified by:

setRestricted in interface IEventList

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getMonth

public java.lang.Integer getMonth()

Returns the month used by restricted iterations

Specified by:

getMonth in interface IEventList

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setMonth

public void setMonth(java.lang.Integer month)

Sets the month used by restricted iterations

Specified by:

setMonth in interface IEventList

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getYear

public java.lang.Integer getYear()

Returns the year used by restricted iterations

Specified by:

getYear in interface IEventList

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setYear

public void setYear(java.lang.Integer year)

Sets the year used by restricted iterations

Specified by:

setYear in interface IEventList

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getComparator

public com.clra.util.ISerializableComparator getComparator()

Stubbed method that returns null

Specified by:

getComparator in interface IEventList

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setComparator

public void setComparator(com.clra.util.ISerializableComparator comparator)

Stubbed method that does nothing

Specified by:

setComparator in interface IEventList

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getIterator

public java.util.Iterator getIterator()
                               throws WebException

Returns an iterator constructed to the current setting

Specified by:

getIterator in interface IEventList

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Home >> All >> com >> clra >> [ web overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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