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STDENTAGGR.SQLRPGLE
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STDENTAGGR.SQLRPGLE
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**********************************************************************************************
* *
* Inuendo 1.2 (Alpha release) - STANDARD ENTITY AGGREGATE FUNCTIONS *
* *
* Copyright (C) 2012, 2019 Christopher F. Burns Sr. *
* c/o The Inuendo Project (http://inuendo.us). *
* *
* Use RPG /COPY statement in application programs to include this member. *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
**********************************************************************************************
/copy qcpysrc,stdhsrvpgm // h-spec for srvpgm
/copy qcpysrc,stdentinp // protytpes, wrk flds
/copy qcpysrc,stdentaggr // protytpes, wrk flds
**********************************************************************************************
* AVERAGE FUNCTIONS (WITH/WITHOUT MOMENT)
**********************************************************************************************
dcl-proc EntityAvgM export; // entity child avg
dcl-pi EntityAvgM like(EntNumbA.Value); // entity child avg
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
Moment like(EntNumbA.ChangeTime) const; // change time stamp
end-pi; // entity child avg
return
EntityAggregation(EntityID : Class : Property : 'AVG' : Moment); // aggregate average
end-proc; // entity child avg
**********************************************************************************************
dcl-proc EntityAvg export; // entity child avg
dcl-pi EntityAvg like(EntNumbA.Value); // entity child avg
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
end-pi; // entity child avg
return
EntityAggregation(EntityID : Class : Property : 'AVG'); // aggregate average
end-proc; // entity child avg
**********************************************************************************************
* MAXIMUM FUNCTIONS (WITH/WITHOUT MOMENT)
**********************************************************************************************
dcl-proc EntityMaxM export; // entity child max
dcl-pi EntityMaxM like(EntNumbA.Value); // entity child max
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
Moment like(EntNumbA.ChangeTime) const; // change time stamp
end-pi; // entity child max
return
EntityAggregation(EntityID : Class : Property : 'MAX' : Moment); // aggregate maximum
end-proc; // entity child max
**********************************************************************************************
dcl-proc EntityMax export; // entity child max
dcl-pi EntityMax like(EntNumbA.Value); // entity child max
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
end-pi; // entity child max
return
EntityAggregation(EntityID : Class : Property : 'MAX'); // aggregate maximum
end-proc; // entity child max
**********************************************************************************************
* MINIMUM FUNCTIONS (WITH/WITHOUT MOMENT)
**********************************************************************************************
dcl-proc EntityMinM export; // entity child min
dcl-pi EntityMinM like(EntNumbA.Value); // entity child min
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
Moment like(EntNumbA.ChangeTime) const; // change time stamp
end-pi; // entity child min
return
EntityAggregation(EntityID : Class : Property : 'MIN' : Moment); // aggregate minimum
end-proc; // entity child min
**********************************************************************************************
dcl-proc EntityMin export; // entity child min
dcl-pi EntityMin like(EntNumbA.Value); // entity child min
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
end-pi; // entity child min
return
EntityAggregation(EntityID : Class : Property : 'MIN'); // aggregate minimum
end-proc; // entity child min
**********************************************************************************************
* SUM FUNCTIONS (WITH/WITHOUT MOMENT)
**********************************************************************************************
dcl-proc EntitySumM export; // entity child sum
dcl-pi EntitySumM like(EntNumbA.Value); // entity child sum
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
Moment like(EntNumbA.ChangeTime) const; // change time stamp
end-pi; // entity child sum
return
EntityAggregation(EntityID : Class : Property : 'SUM' : Moment); // aggregate sum
end-proc; // entity child sum
**********************************************************************************************
dcl-proc EntitySum export; // entity child sum
dcl-pi EntitySum like(EntNumbA.Value); // entity child sum
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
end-pi; // entity child sum
return
EntityAggregation(EntityID : Class : Property : 'SUM'); // aggregate minimum
end-proc; // entity child sum
**********************************************************************************************
* COUNT FUNCTIONS (WITH/WITHOUT MOMENT)
**********************************************************************************************
dcl-proc EntityCountM export; // entity child count
dcl-pi EntityCountM like(EntNumbA.Value); // entity child count
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Moment like(EntNumbA.ChangeTime) const; // change time stamp
end-pi; // entity child count
dcl-s PropertyX like(EntNumbA.Property) inz('LEGACYN'); // property nickname
return
EntityAggregation(EntityID : Class : PropertyX : 'CNT' : Moment); // aggregate sum
end-proc; // entity child count
**********************************************************************************************
dcl-proc EntityCount export; // entity child count
dcl-pi EntityCount like(EntNumbA.Value); // entity child count
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
end-pi; // entity child count
dcl-s PropertyX like(EntNumbA.Property) inz('LEGACYN'); // property nickname
return
EntityAggregation(EntityID : Class : PropertyX : 'CNT'); // aggregate count
end-proc; // entity child count
**********************************************************************************************
* SUPPORTING FUNCTIONS
**********************************************************************************************
dcl-proc EntityAggregation; // entity aggregation
dcl-pi EntityAggregation like(EntNumbA.Value); // entity aggregation
EntityID like(EntNumbA.EntityID) const; // entity ID
Class like(EntHeadA.Class) const; // child entity class
Property like(EntNumbA.Property) const; // property nickname
Function like(AggrFunction) const; // aggregation function
Moment like(EntNumbA.ChangeTime) const options(*nopass); // change time stamp
end-pi; // entity aggregation
dcl-s ResultX like(EntNumbA.Value); // result work field
dcl-s ClassX like(EntHeadA.Class); // entity class
dcl-s PropertyX like(EntNumbA.Property); // property nickname
dcl-s FunctionX like(AggrFunction); // function work field
dcl-s MomentX like(EntHeadA.CreateTime); // moment in time
ClassX = UpperCase(Class); // class in uppercase
PropertyX = UpperCase(Property); // prop in uppercase
if ValidClassProperty(ClassX : PropertyX : 'NUMB'); // if valid class
if %parms >= 5; // if moment provided
MomentX = Moment; // use it
else; // no moment provided
MomentX = getSessionMoment(); // use session moment
endif; // if moment provided
FunctionX = UpperCase(Function); // upper cased function
exec sql
select case when :FunctionX = 'AVG'
then avg(getNumb(entityID, :PropertyX, :MomentX))
when :FunctionX = 'MAX'
then max(getNumb(entityID, :PropertyX, :MomentX))
when :FunctionX = 'MIN'
then min(getNumb(entityID, :PropertyX, :MomentX))
when :FunctionX = 'SUM'
then sum(getNumb(entityID, :PropertyX, :MomentX))
when :FunctionX = 'CNT'
then count(*)
else 0 end into :ResultX
from enthead
where ParentID = :EntityID and Class = :ClassX
and (:FunctionX != 'CNT' or CreateTime <= :MomentX); // aggregate function
endif; // if valid class
return ResultX; // result of aggr func
end-proc; // entity aggregation