Class CCoeStatic

class CCoeStatic : public CBase;

Description

Base class for creating singleton objects that will be stored by CCoeEnv.

Each object must have a unique TUid.

Symbian OS does not provide writeable global static data. Singleton objects provide its equivalent in thread local storage, which is supported.

This behaviour is useful for objects in which only one copy is ever needed in the thread or application, e.g. in alert windows.

Derivation

• CBase - Base class for all classes to be instantiated on the heap.

• CCoeStatic - Base class for creating singleton objects that will be stored by CCoeEnv.

Members

Defined in CCoeStatic:

• CCoeStatic()
• CCoeStatic(TUid,TInt,TScope)Constructor specifying a unique UID and the destruction priority and scope of th...
• CCoeStatic(TUid,TScope)Constructor specifying a unique UID and the scope of the object.
• CCoeStatic_Reserved1()
• CCoeStatic_Reserved2()
• EAppAccess from an appUi in that thread.
• EDefaultDestructionPriority
• EThreadAccess from the entire thread.
• TScopeScope of access to the singleton object.
• anonymousThe default destruction priority if none is specified in the constructor
• ~CCoeStatic()Destructor.

Inherited from CBase:

• Delete(CBase *)Deletes the specified object.
• Extension_(TUint,TAny *&,TAny *)Extension function
• operator new(TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TAny *)Initialises the object to binary zeroes.
• operator new(TUint,TLeave)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TLeave,TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TUint)Allocates the object from the heap and then initialises its contents to binary z...

IMPORT_C ~CCoeStatic();

Description

Destructor.

protected: IMPORT_C CCoeStatic();

Description

protected: IMPORT_C CCoeStatic(TUid aUid, TScope=EThread);

Description

Constructor specifying a unique UID and the scope of the object.

Parameters

TUid aUid The unique UID. CCoeStatic::TScope

protected: IMPORT_C CCoeStatic(TUid aUid, TInt aDestructionPriority, TScope aScope=EThread);

Description

Constructor specifying a unique UID and the destruction priority and scope of the object.

Parameters

TUid aUid The unique UID. TInt aDestructionPriority Priority determining the order of destruction relative to other CCoeStatic-derived objects. The higher the destruction-priority of the object, the earlier that object is deleted. Objects with a positive destruction-priority are destroyed before the CCoeAppUi object is destroyed. Objects with a negative destruction-priority are destroyed after the CCoeAppUi object is destroyed. CCoeStatic::TScope aScope The scope of access to the object. By default, the object can be accessed from anywhere in the thread (EThread).

private: IMPORT_C virtual void CCoeStatic_Reserved1();

Description

private: IMPORT_C virtual void CCoeStatic_Reserved2();

Description

TScope

Description

Scope of access to the singleton object.

EThread Access from the entire thread. EApp Access from an appUi in that thread.

n/a

Description

The default destruction priority if none is specified in the constructor

EDefaultDestructionPriority