Runtime tools : Core components : ElementFactory : Tasks : Scope : Singleton
  
Singleton
When the scope is defined to singleton, there is only one instance for the definition. In other words, there is only one instance for each element id. The singleton instance is cached in ElementFactory. On the sequence invocation of getElement(String id), the cached instance will be returned instead of creating a new instance.
The following diagram shows how the singleton scope works:
diagram shows how the singleton scope works
Following is a sample definition for singleton scope:
<mypackage.SimpleElement id="aSimpleElement" Scope="singleton"/>
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