Initial revision

From-SVN: r102074

libjava/classpath/gnu/xml/libxmlj/dom/GnomeXPathResult.java

@@ -0,0 +1,132 @@
+/* GnomeXPathResult.java - 
+   Copyright (C) 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.xml.libxmlj.dom;
+
+import org.w3c.dom.DOMException;
+import org.w3c.dom.Node;
+import org.w3c.dom.xpath.XPathException;
+import org.w3c.dom.xpath.XPathResult;
+
+/**
+ * An XPath result object implemented in libxml2.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ */
+class GnomeXPathResult
+implements XPathResult
+{
+
+  /**
+   * xmlXPathObjectPtr
+   */
+  final Object obj;
+
+  GnomeXPathResult (Object obj)
+  {
+    this.obj = obj;
+  }
+
+  protected void finalize ()
+  {
+    free (obj);
+  }
+
+  private native void free (Object obj);
+  
+  public native short getResultType ();
+
+  public native double getNumberValue ()
+    throws XPathException;
+
+  public native String getStringValue ()
+    throws XPathException;
+
+  public native boolean getBooleanValue ()
+    throws XPathException;
+
+  public native Node getSingleNodeValue ()
+    throws XPathException;
+
+  public native boolean getInvalidIteratorState();
+
+  public native int getSnapshotLength ()
+    throws XPathException;
+
+  public native Node iterateNext ()
+    throws XPathException, DOMException;
+
+  public native Node snapshotItem (int index)
+    throws XPathException;
+
+  public String toString ()
+  {
+    short type = getResultType ();
+    switch (type)
+      {
+      case STRING_TYPE:
+        return getStringValue ();
+      case NUMBER_TYPE:
+        return new Double (getNumberValue ()).toString ();
+      case BOOLEAN_TYPE:
+        return Boolean.valueOf (getBooleanValue ()).toString ();
+      case UNORDERED_NODE_SNAPSHOT_TYPE:
+        int len = getSnapshotLength ();
+        switch (len) {
+        case 0:
+          return "[no matches]";
+        case 1:
+          return getSingleNodeValue ().toString ();
+        default:
+          StringBuffer buffer = new StringBuffer ();
+          for (int i = 0; i < len; i++)
+            {
+              if (i > 0)
+                {
+                  buffer.append (',');
+                }
+              buffer.append (snapshotItem (i));
+            }
+          return buffer.toString ();
+        }
+      default:
+        return getClass ().getName () + "[type=" + type + ",length=" +
+          getSnapshotLength () + ']';
+      }
+  }
+  
+}