SPARQL 1.0 Prologue

src/main/java/fr/inria/corese/core/next/data/impl/common/prefix/PrefixHandler.java

@@ -29,6 +29,13 @@ public class PrefixHandler implements IPrefixHandler, Cloneable {
      */
     private String defaultNamespace;
 
+    /**
+     * Creates a new PrefixHandler.
+     */
+    public PrefixHandler() {
+        this(false);
+    }
+
     /**
      * Creates a new PrefixHandler.
      *
@@ -418,6 +425,21 @@ public String toString() {
         return sb.toString();
     }
 
+    @Override
+    public boolean equals(Object other) {
+        if(! (other instanceof IPrefixHandler)) {
+            return false;
+        }
+        return Objects.equals(this.getDefaultNamespace(), ((IPrefixHandler) other).getDefaultNamespace())
+                && Objects.equals(this.getNamespaceMap(), ((IPrefixHandler) other).getNamespaceMap())
+                && Objects.equals(this.getPrefixMap(), ((IPrefixHandler) other).getPrefixMap());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(defaultNamespace, prefixToNamespace, namespaceToPrefix);
+    }
+
     /**
      * Simple immutable implementation of Namespace interface.
      * Used internally to create Namespace objects from prefix-URI pairs.