openDAQ
Open data acquisition platform
ISearchFilter Struct Referenceabstract

Search filter that can be passed as an optional parameter to openDAQ tree traversal functions to filter out unwanted results. Allows for recursive searches. More...

+ Inheritance diagram for ISearchFilter:
+ Collaboration diagram for ISearchFilter:

Detailed Description

Search filter that can be passed as an optional parameter to openDAQ tree traversal functions to filter out unwanted results. Allows for recursive searches.

Each filter defines an "accepts component" and "visit children" function.

Accepts component defines whether or not the component being evaluated as part of a search method should be included in the resulting output.

Visit children defines whether or not the children of said component should be traversed during a recursive search.

Public Member Functions

virtual ErrCode INTERFACE_FUNC acceptsComponent (IComponent *component, Bool *accepts)=0
 Defines whether or not the component should be included in the search results. More...
 
virtual ErrCode INTERFACE_FUNC visitChildren (IComponent *component, Bool *visit)=0
 Defines whether or not the children of said component should be traversed during a recursive search. More...
 
- Public Member Functions inherited from IBaseObject
virtual ErrCode INTERFACE_FUNC borrowInterface (const IntfID &intfID, void **obj) const =0
 Returns another interface which is supported by the object without incrementing the reference count. More...
 
virtual ErrCode INTERFACE_FUNC dispose ()=0
 Disposes all references held by the object. More...
 
virtual ErrCode INTERFACE_FUNC getHashCode (SizeT *hashCode)=0
 Returns hash code of the object. More...
 
virtual ErrCode INTERFACE_FUNC equals (IBaseObject *other, Bool *equal) const =0
 Compares object to another object for equality. More...
 
virtual ErrCode INTERFACE_FUNC toString (CharPtr *str)=0
 Returns a string representation of the object. More...
 
- Public Member Functions inherited from IUnknown
virtual ErrCode INTERFACE_FUNC queryInterface (const IntfID &intfID, void **obj)=0
 Returns another interface which is supported by the object and increments the reference count. More...
 
virtual int INTERFACE_FUNC addRef ()=0
 Increments the reference count for an interface on an object. More...
 
virtual int INTERFACE_FUNC releaseRef ()=0
 Decrements the reference count for an interface on an object. More...
 

Member Function Documentation

◆ acceptsComponent()

virtual ErrCode INTERFACE_FUNC acceptsComponent ( IComponent component,
Bool *  accepts 
)
pure virtual

Defines whether or not the component should be included in the search results.

Parameters
componentThe component being evaluated.
[out]acceptsTrue of the component is to be included in the results; false otherwise.

◆ visitChildren()

virtual ErrCode INTERFACE_FUNC visitChildren ( IComponent component,
Bool *  visit 
)
pure virtual

Defines whether or not the children of said component should be traversed during a recursive search.

Parameters
componentThe component being evaluated.
[out]visitTrue of the component's children should be traversed; false otherwise.