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// Copyright 2020 Goldman Sachs
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import meta::pure::graphFetch::*;
import meta::pure::graphFetch::execution::*;

Class meta::pure::graphFetch::GraphFetchTree
{
   subTrees : GraphFetchTree[*];
   subTypeTrees : SubTypeGraphFetchTree[*];

   propertyTrees()
   {
      $this.subTrees->filter(st|$st->instanceOf(PropertyGraphFetchTree))->cast(@PropertyGraphFetchTree)
   }: PropertyGraphFetchTree[*];

   propertyTreeForProperty(property : AbstractProperty[1])
   {
      $this.propertyTrees()->filter(st|$st.property == $property)
   }: PropertyGraphFetchTree[*];
}

Class meta::pure::graphFetch::RootGraphFetchTree extends GraphFetchTree, Referenceable
{
   class : Class[1];
}

Class meta::pure::graphFetch::SubTypeGraphFetchTree extends GraphFetchTree
{
   subTypeClass: Class[1];
}

Class meta::pure::graphFetch::PropertyGraphFetchTree extends GraphFetchTree
{
   property : AbstractProperty[1];
   parameters : ValueSpecification[*];
   alias : String[0..1];
   subType : Class[0..1];
   
   isPrimitive()
   {
      $this.property.genericType.rawType->toOne()->instanceOf(PrimitiveType) || $this.property.genericType.rawType->toOne()->instanceOf(Enumeration)
   }:Boolean[1];

   isQualifiedProperty()
   {
      $this.property->instanceOf(QualifiedProperty)
   }:Boolean[1];
}