-- File:	OrFilter.cdl
-- Created:	Mon Dec  4 17:45:11 1995
-- Author:	Stephane MORTAUD
--		<smo@gibson>
--last modifs by rob 29-01-96 : heritage de CompositionFilter
---Copyright:	 Matra Datavision 1995


class OrFilter from SelectMgr inherits CompositionFilter from SelectMgr

    	---Purpose: A framework to define an or selection filter.
    	-- This selects one or another type of sensitive entity.
uses

    Filter       from SelectMgr,
    Transient    from Standard,
    EntityOwner  from SelectMgr

is

    Create
    returns mutable OrFilter from SelectMgr;
    	---Purpose: Constructs an empty or selection filter.
    IsOk(me; anobj : EntityOwner from SelectMgr)
    returns Boolean from Standard ;

end OrFilter;