* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* In addition, as a special exception, The Mir-coders gives permission to link
- * the code of this program with any library licensed under the Apache Software License,
- * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
- * (or with modified versions of the above that use the same license as the above),
- * and distribute linked combinations including the two. You must obey the
- * GNU General Public License in all respects for all of the code used other than
- * the above mentioned libraries. If you modify this file, you may extend this
- * exception to your version of the file, but you are not obligated to do so.
+ * the code of this program with any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two. You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries. If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
* If you do not wish to do so, delete this exception statement from your version.
*/
package mir.entity.adapter;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
+import java.util.List;
import java.util.Map;
import java.util.Set;
import mir.entity.Entity;
import mir.util.CachingRewindableIterator;
+/** An EntityAdapter is a wrapper around an Entity meant to add
+ * missing functionality. It provides "calculated fields"
+ * which mir installations can extend reasonably easilly.
+ * "calculated fields" compute values that are not directly present
+ * in the db table. For example:
+ * a field to have the number of comments associated with an article;
+ * a field to get the list of hidden comments associated with an article;
+ * etc.
+ * <p>This whole framework is meant to be replaced by hibernate</p>
+ */
public class EntityAdapter implements Map {
private Entity entity;
private EntityAdapterDefinition definition;
public boolean containsKey(Object aKey) {
try {
if (aKey instanceof String)
- return entity.hasValueForField((String) aKey)
- || definition.hasCalculatedField((String) aKey)
- || entity.getFields().contains(aKey);
+ return entity.hasField((String) aKey)
+ || definition.hasCalculatedField((String) aKey);
}
catch (Throwable t) {
}
return result;
}
else if (aKey instanceof String) {
- return entity.getValue((String) aKey);
+ return entity.getFieldValue((String) aKey);
}
else {
return null;
throw new UnsupportedOperationException("EntityAdapter.entrySet()");
}
- public Object getRelation(String aWhereClause, String anOrderByClause, String aDefinition) {
+ public Object getComplexRelation(String aMainTablePrefix, List someExtraTables,
+ String aWhereClause, String anOrderByClause, String aDefinition) {
try {
return
new CachingRewindableIterator(
- new EntityIteratorAdapter(
- aWhereClause, anOrderByClause, -1, getModel(), aDefinition));
+ new EntityIteratorAdapter(aMainTablePrefix, someExtraTables,
+ aWhereClause, anOrderByClause,
+ -1, getModel(), aDefinition, -1, 0)
+ );
+ }
+ catch (Throwable t) {
+ throw new RuntimeException(t.getMessage());
+ }
+ }
+
+
+ public Object getRelation(String aWhereClause, String anOrderByClause, String aDefinition) {
+ try {
+ return EntityAdapterEngine.retrieveAdapterList(model, aDefinition, aWhereClause, anOrderByClause, -1, 0);
}
catch (Throwable t) {
throw new RuntimeException(t.getMessage());
}
}
- public Object getToOneRelation(String aWhereClause, String anOrderByClause, String aDefinition) {
+ public EntityAdapter getToOneRelation(String aWhereClause, String anOrderByClause, String aDefinition) {
try {
- Iterator i = new EntityIteratorAdapter(aWhereClause, anOrderByClause, -1, getModel(), aDefinition);
+ Iterator i = new EntityIteratorAdapter(aWhereClause, anOrderByClause, 1, getModel(), aDefinition, 1, 0);
if (i.hasNext())
- return i.next();
- else
- return null;
+ return (EntityAdapter) i.next();
+ return null;
}
catch (Throwable t) {
throw new RuntimeException(t.getMessage());
}
}
+
+ public EntityAdapter getComplexToOneRelation(String aMainTablePrefix, List someExtraTables,
+ String aWhereClause, String anOrderByClause, String aDefinition) {
+ try {
+ Iterator i = new EntityIteratorAdapter(aMainTablePrefix, someExtraTables, aWhereClause, anOrderByClause, -1,
+ getModel(), aDefinition, 1, 0);
+
+ if (i.hasNext())
+ return (EntityAdapter) i.next();
+ return null;
+ }
+ catch (Throwable t) {
+ throw new RuntimeException(t.getMessage());
+ }
+ }
+
}
\ No newline at end of file