add comment and modify matchPlainRDFNodes

Author: icgw

README.md

@@ -73,6 +73,7 @@ public class Demo
     ModelStorage source = new ModelStorage("src/test/resources/oaei/conference/Conference.owl");
     ModelStorage target = new ModelStorage("src/test/resources/oaei/conference/ekaw.owl");
 
+    /************************** Lexical-level Matching ***************************/
     LexicalMatcher lm = MatcherFactory.createLexicalMatcher();
 
     lm.setSourceTarget(source, target);
@@ -86,6 +87,7 @@ public class Demo
     lm.mapObjectProperties(lexicalObjectPropertyMappings);
     System.out.println(lexicalObjectPropertyMappings);
 
+    /************************* Structural-level Matching *************************/
     StructuralMatcher sm = MatcherFactory.createStructuralMatcher();
     sm.setSourceTarget(source, target);
     sm.setExtractType(true, true);

src/main/java/cn/ac/amss/semanticweb/matching/impl/AbstractMatcher.java

@@ -45,11 +45,7 @@ protected void matchPlainRDFNodes(Set<PlainRDFNode> candidatePool, Mapping mappi
     Set<PlainRDFNode> sources = new HashSet<>();
     Set<PlainRDFNode> targets = new HashSet<>();
     splitPlainRDFNodes(candidatePool, sources, targets);
-    for (PlainRDFNode s : sources) {
-      for (PlainRDFNode t : targets) {
-        mappings.add(s.getRepresent(), t.getRepresent());
-      }
-    }
+    matchPlainRDFNodes(sources, targets, mappings);
   }
 
   protected void matchPlainRDFNodes(Set<PlainRDFNode> sources, Set<PlainRDFNode> targets, Mapping mappings) {