Create TDSRelationAccessor for PCT (#905)

* Create TDSRelationAccessor for PCT

* Use fully qualified path for RelationElementAccessor

* Update SPR id

* Add constraint for type checking in TDSRelationAccessor

* Update tds.pure

* Update pom.xml

legend-pure-dsl/legend-pure-dsl-tds/legend-pure-m2-dsl-tds-pure/src/main/resources/platform_dsl_tds/tds.pure

@@ -19,4 +19,21 @@ Class meta::pure::metamodel::relation::TDS<T> extends meta::pure::metamodel::rel
     csv : String[1];
 }
 
-native function meta::pure::metamodel::relation::stringToTDS(s:String[1]):meta::pure::metamodel::relation::TDS<Any>[1];
+Class meta::pure::metamodel::relation::TDSRelationAccessor<T> extends meta::pure::metamodel::relation::RelationElementAccessor<T>
+[
+  sourceElementExists
+  (
+    ~function: $this.sourceElement->isNotEmpty() && $this.sourceElement->instanceOf(meta::pure::metamodel::relation::TDS)
+    ~enforcementLevel: Error
+    ~message: 'Source element needs to exist and to be type of TDS'
+  )
+]
+{
+}
+
+function meta::pure::metamodel::relation::newTDSRelationAccessor<T>(tds:TDS<T>[1]):TDSRelationAccessor<T>[1]
+{
+  ^TDSRelationAccessor<T>(sourceElement = $tds);
+}
+
+native function meta::pure::metamodel::relation::stringToTDS(s:String[1]):meta::pure::metamodel::relation::TDS<Any>[1];

legend-pure-dsl/legend-pure-dsl-tds/legend-pure-runtime-java-extension-compiled-dsl-tds/pom.xml

@@ -101,6 +101,10 @@
             <artifactId>legend-pure-runtime-java-engine-compiled</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.eclipse.collections</groupId>
+            <artifactId>eclipse-collections</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.eclipse.collections</groupId>
             <artifactId>eclipse-collections-api</artifactId>