org.olat.lms.scorm.server.sequence

类 PrerequisiteManager

java.lang.Object

org.olat.system.commons.manager.BasicManager

org.olat.lms.scorm.server.sequence.PrerequisiteManager

public class PrerequisiteManager
extends BasicManager

A class to handle prerequisites found for items in the manifest. Uses http://www.beanshell.org/

作者:

Paul Sharples

构造器概要

构造器

构造器和说明
PrerequisiteManager(java.lang.String org, ISettingsHandler settings) Constructor which allows the disk model to be loaded into the manager

方法概要

方法

限定符和类型	方法和说明
boolean	canLaunchItem(java.lang.String sco, java.lang.String prerequisites) Method to find if an item should be launched 1. has it already been completed 2. does it rely on any prerequisites
boolean	checkPrerequisites(java.lang.String prereq)
static int	countOccurences(java.lang.String base, java.lang.String searchFor) Method to search a string to see how many occurences of a substring exist within it.
boolean	hasItemBeenCompleted(java.lang.String sco) Method to find if an item should be launched 1. has it already been completed
static boolean	isValid(java.lang.String aprereq) A utillity method to test a prerequisite string to see if it is legal.
void	showPreReqTable() A utillity method for testing purposes - prints out the current state of the prerequisites table.
void	updatePrerequisites(java.lang.String sco, java.lang.String status, boolean persist) A method to allow us to keep our prerequisite table up-to-date

从类继承的方法 java.lang.Object

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

构造器详细资料

PrerequisiteManager

public PrerequisiteManager(java.lang.String org,
                   ISettingsHandler settings)

Constructor which allows the disk model to be loaded into the manager

参数:

org -

方法详细资料

updatePrerequisites

public void updatePrerequisites(java.lang.String sco,
                       java.lang.String status,
                       boolean persist)

A method to allow us to keep our prerequisite table up-to-date

参数:

sco - - the id of the sco

status - - its current status

persist -

canLaunchItem

public boolean canLaunchItem(java.lang.String sco,
                    java.lang.String prerequisites)

Method to find if an item should be launched 1. has it already been completed 2. does it rely on any prerequisites

参数:

sco -

prerequisites -

返回:

true if possible

hasItemBeenCompleted

public boolean hasItemBeenCompleted(java.lang.String sco)

Method to find if an item should be launched 1. has it already been completed

参数:

sco -

返回:

true if item is completed

checkPrerequisites

public boolean checkPrerequisites(java.lang.String prereq)

参数:

prereq -

返回:

true if ???

showPreReqTable

public void showPreReqTable()

A utillity method for testing purposes - prints out the current state of the prerequisites table.

isValid

public static boolean isValid(java.lang.String aprereq)

A utillity method to test a prerequisite string to see if it is legal. (mainly to check that there are no illegal chars in it) More rubust checking will be made once the prerequisite is parsed. Note: Because sets are not yet supported, ie 2*{S1,S2,S3} we will not flag for ,*{} characters. This will be addressed in a later version.

参数:

aprereq -

返回:

true or false

countOccurences

public static int countOccurences(java.lang.String base,
                  java.lang.String searchFor)

Method to search a string to see how many occurences of a substring exist within it.

参数:

base - - string to search

searchFor - - what to search for

返回:

- the number found