org.zkoss.zk.ui.impl
Class StaticIdGenerator

java.lang.Object
  org.zkoss.zk.ui.impl.StaticIdGenerator

All Implemented Interfaces:

java.io.Serializable, IdGenerator

public class StaticIdGenerator
extends java.lang.Object
implements IdGenerator, java.io.Serializable

Use this generator will generate fixed uuid for each component. It is recommended if you want to performance stress test such as JMeter.

To use this Id Generator, add system-config in zk.xml.

 <system-config>
     <id-generator-class>org.zkoss.zk.ui.impl.StaticIdGenerator</id-generator-class>
 </system-config>
 

Since:

7.0.0

Author:

Vincent

See Also:

Serialized Form

Constructor Summary

StaticIdGenerator()

Method Summary

java.lang.String	nextComponentUuid(Desktop desktop, Component comp, ComponentInfo compInfo) Returns the next component UUID for the specified component, or null to generate the default UUID.
java.lang.String	nextDesktopId(Desktop desktop) Returns the next desktop ID for the specified desktop, or null to generate the default ID.
java.lang.String	nextPageUuid(Page page) Returns the next page UUID for the specified page, or null to generate the default UUID.

Methods inherited from class java.lang.Object

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

Constructor Detail

StaticIdGenerator

public StaticIdGenerator()

Method Detail

nextComponentUuid

public java.lang.String nextComponentUuid(Desktop desktop,
                                          Component comp,
                                          ComponentInfo compInfo)

Description copied from interface: IdGenerator

Returns the next component UUID for the specified component, or null to generate the default UUID.

Default (if null is returned): UUID is generated by prefixing a portion of the desktop's ID with a number starting from 0.

Notice that UUID cannot be empty and can only have alphanumeric characters or underscore (i.e., a-z, A-Z, 0-9, and _).

This method is called when Component.getUuid() is called at the first time. It is usually when the component is attached to a page, unless the application invokes Component.getUuid() earlier.

Specified by:

nextComponentUuid in interface IdGenerator

Parameters:

desktop - the current desktop (never null)

comp - the component (never null)

compInfo - the information about the properties specified in the ZUML document, null if the component is instantiated manually.

Returns:

the next component UUID, or null to generate the

nextPageUuid

public java.lang.String nextPageUuid(Page page)

Description copied from interface: IdGenerator

Returns the next page UUID for the specified page, or null to generate the default UUID.

Default (if null is returned): UUID is generated by prefixing a portion of the desktop's ID with a number starting from 0.

Notice that UUID cannot be empty and can only have alphanumeric characters or underscore (i.e., a-z, A-Z, 0-9, and _). In additions, UUID for pages cannot be the same as UUID for components.

Also notice that the execution can be retrieved by use of Executions.getCurrent().

Specified by:

nextPageUuid in interface IdGenerator

Returns:

the next page UUID, or null to generate the default UUID.

nextDesktopId

public java.lang.String nextDesktopId(Desktop desktop)

Description copied from interface: IdGenerator

Returns the next desktop ID for the specified desktop, or null to generate the default ID.

Default (if null is returned): ID is generated randomly. In other words, the desktop's ID, by default, is not deterministic. To have a deterministic value, you have to implement this method.

Notice that UUID cannot be empty and can only have alphanumeric characters or underscore (i.e., a-z, A-Z, 0-9, and _).

Also notice that we can retrieve the execution by use of Desktop.getExecution(), or Executions.getCurrent().

Specified by:

nextDesktopId in interface IdGenerator

Returns:

the next desktop ID, or null to generate the default ID.