The version Element

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'''Syntax:'''
 <version>
    <version-class>''a_class''</version-class>
    <version-uuid>''a_version''</version-uuid>
    <zk-version>''a_version''</zk-version>
 </version>

 [Optional]

It specifies the version of this configuration. It also controls whether to ignore this configuration.

First, ZK checks if the specified class (&lt;version-calss&gt;) matches the version (&lt;version-uuid&gt;). Second, it checks if ZK's version is the same or larger than the version specified in &lt;zk-version&gt;.

The specified class, if any, must have a static field called <code>UID</code>. ZK will compare its value with the version specified in &lt;version-uuid&gt;. For example,

<source lang="java">
package foo;
public class MyAddon {
    public static public static final String UID = "1.0.3";
}
</source>

Then, you could specify it as follows.

<source lang="xml">
<version>
	<version-class>foo.MyAddon</version-class>
	<version-uid>1.0.3</version-uid>
	<zk-version>5.0.0</zk-version>
</version>
</source>

which means <code>foo.MyAddon.UID</code> must be 1.0.3, and <javadoc method="getVersion()" type="interface">org.zkoss.zk.ui.WebApp</javadoc> must be 5.0.0 or later.

=Version History=
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