The org.zkoss.zk.ui.util.ExecutionInit interface"
m (correct highlight (via JWB)) |
|||
(5 intermediate revisions by 3 users not shown) | |||
Line 1: | Line 1: | ||
{{ZKConfigurationReferencePageHeader}} | {{ZKConfigurationReferencePageHeader}} | ||
− | |||
− | |||
− | + | '''Listener:''' | |
+ | org.zkoss.zk.ui.util.ExecutionInit | ||
− | + | A listener could implement <javadoc type="interface">org.zkoss.zk.ui.util.ExecutionInit</javadoc> to initialize a new execution. | |
− | + | When the ZK Loader and Update Engine created a new execution, it invokes the <code>init</code> method of this interface such that developers could plug the application-specific codes to initialize an execution. | |
− | + | '''Tip''': Executions might be stacked. To know whether it is the first execution since a (Servlet) request is processed, you can check whether the <code>parent</code> argument is <code>null</code>. | |
+ | A developer can prevent an execution from being created by throwing an exception in the <code>init</code> method. | ||
− | + | '''Instantiation:''' | |
+ | An independent instance of the given class is instantiated each time before the method is invoked. It means it is thread safe, and all information stored in non-static members will be lost after called. | ||
+ | |||
+ | {{ZKConfigurationReferencePageFooter}} |
Latest revision as of 10:33, 19 January 2022
Listener:
org.zkoss.zk.ui.util.ExecutionInit
A listener could implement ExecutionInit to initialize a new execution.
When the ZK Loader and Update Engine created a new execution, it invokes the init
method of this interface such that developers could plug the application-specific codes to initialize an execution.
Tip: Executions might be stacked. To know whether it is the first execution since a (Servlet) request is processed, you can check whether the parent
argument is null
.
A developer can prevent an execution from being created by throwing an exception in the init
method.
Instantiation: An independent instance of the given class is instantiated each time before the method is invoked. It means it is thread safe, and all information stored in non-static members will be lost after called.