org.mycore.services.urn
Class MCRNISSBuilderDateCounter

java.lang.Object
  org.mycore.services.urn.MCRNISSBuilderDateCounter

All Implemented Interfaces:

MCRNISSBuilder

public class MCRNISSBuilderDateCounter
extends Object
implements MCRNISSBuilder

Builds a new, unique NISS based on the current date and/or time in combination with a counter. The date/time can be formatted with a Java SimpleDateFormat pattern, the counter ca be formatted with a Java DecimalFormat pattern. The property "NISSPattern" is used for configuring the instance. Example configuration: MCR.URN.SubNamespace.Essen.Prefix=urn:nbn:de:465-miless- MCR.URN.SubNamespace.Essen.NISSBuilder=org.mycore.services.urn.MCRNISSBuilderDateCounter MCR.URN.SubNamespace.Essen.NISSPattern=yyyyMMdd-HHmmss-000 Subsequent calls to MCRURN.buildURN( "Essen" ) could then generate the following URNs, for example: urn:nbn:de:465-miless-20060622-213404-0017 urn:nbn:de:465-miless-20060622-213404-0025 urn:nbn:de:465-miless-20060622-213448-0013 The last character is the checksum digit. In the first two URNs, the generated date pattern is the same, so the counter is increased (starting at 1). The use of "0" instead of "#" in the pattern produces leading zeros. A pattern might have no date part (only use counter) or no counter part (only use date pattern)

Author:

Frank Lützenkirchen

Constructor Summary

MCRNISSBuilderDateCounter()

Method Summary

String	buildNISS() Builds a new NISS.
void	init(String configID) Initializes this instance of a MCRNISSBuilder.

Methods inherited from class java.lang.Object

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

Constructor Detail

MCRNISSBuilderDateCounter

public MCRNISSBuilderDateCounter()

Method Detail

init

public void init(String configID)

Description copied from interface: MCRNISSBuilder

Initializes this instance of a MCRNISSBuilder. This method is only called once for each instance before this builder is used.

Specified by:

init in interface MCRNISSBuilder

Parameters:

configID - the ID of a subnamespace configuration in mycore.properties

buildNISS

public String buildNISS()

Description copied from interface: MCRNISSBuilder

Builds a new NISS. No MCRNISSBuilder object must generate the same NISS twice, they must ensure the NISS is unique.

Specified by:

buildNISS in interface MCRNISSBuilder