[ issue #96 ] Minor bug fix on query builder

Author: agazzarini

solrdf/solrdf-core/src/main/java/org/gazzax/labs/solrdf/graph/standalone/LocalGraph.java

@@ -299,9 +299,8 @@ public String deleteQuery(final Triple triple) {
 			}
 		}
 
-		
+		builder.append(builder.length() != 0 ? " AND " : "");
 		return builder
-			.append(" AND ")
 			.append(Field.C)
 			.append(":\"")
 			.append(graphNodeStringified)

solrdf/solrdf-core/src/main/java/org/gazzax/labs/solrdf/handler/search/algebra/QueryIterBlockTriples2.java

@@ -63,7 +63,9 @@ private QueryIterBlockTriples2(
 				collector.add(
 						new DocSetWithTriplePattern(
 								searcher.getDocSet(
-										QParser.getParser(graph.deleteQuery(triplePattern), "lucene", req).getQuery()),
+										QParser.getParser(
+												graph.deleteQuery(triplePattern), "lucene", req)
+										.getQuery()),
 								triplePattern));
 	        }