package org.yaz4j;
-import org.yaz4j.jni.SWIGTYPE_p_ZOOM_connection_p;
+import org.yaz4j.exception.ZoomException;
import org.yaz4j.jni.SWIGTYPE_p_ZOOM_record_p;
import org.yaz4j.jni.SWIGTYPE_p_ZOOM_resultset_p;
import org.yaz4j.jni.yaz4jlib;
public class ResultSet {
-
+ //for GC refcount
+ private Connection conn;
private SWIGTYPE_p_ZOOM_resultset_p resultSet;
- private SWIGTYPE_p_ZOOM_connection_p connection;
private long size = 0;
- private Record[] records = null;
private boolean disposed = false;
- ResultSet(SWIGTYPE_p_ZOOM_resultset_p resultSet, SWIGTYPE_p_ZOOM_connection_p connection) {
+ ResultSet(SWIGTYPE_p_ZOOM_resultset_p resultSet, Connection conn) {
this.resultSet = resultSet;
- this.connection = connection;
size = yaz4jlib.ZOOM_resultset_size(this.resultSet);
- records = new Record[(int) size];
+ this.conn = conn;
}
+ @Override
public void finalize() {
- this.Dispose();
+ this._dispose();
}
- ResultSetOptionsCollection getResultSetOptions() {
- return new ResultSetOptionsCollection(resultSet);
+ /**
+ * Read option by name.
+ * @param name option name
+ * @return option value
+ */
+ public String option(String name) {
+ return yaz4jlib.ZOOM_resultset_option_get(resultSet, name);
}
- public Record getRecord(int index) {
- if (records[index] == null) {
- SWIGTYPE_p_ZOOM_record_p recordTemp = yaz4jlib.ZOOM_resultset_record(resultSet, index);
- records[index] = new Record(recordTemp, this);
- }
+ /**
+ * Write option with a given name.
+ * @param name option name
+ * @param value option value
+ * @return result set (self) for chainability
+ */
+ public ResultSet option(String name, String value) {
+ yaz4jlib.ZOOM_resultset_option_set(resultSet, name, value);
+ return this;
+ }
- return this.records[index];
+ public Record getRecord(int index) throws ZoomException {
+ SWIGTYPE_p_ZOOM_record_p record =
+ yaz4jlib.ZOOM_resultset_record(resultSet, index);
+ //may be out of range or unsupported syntax
+ if (record == null) {
+ return null;
+ }
+ int errorCode = yaz4jlib.ZOOM_record_error(record, null, null, null);
+ if (errorCode != 0) throw new ZoomException("Record excpetion, code " + errorCode);
+ return new Record(record, this);
}
- public int getSize() {
- return (int) size;
+ public long getHitCount() {
+ return size;
}
- public void Dispose() {
+ void _dispose() {
if (!disposed) {
- for (int i = 0; i < records.length; i++) {
- if (records[i] != null) {
- records[i].Dispose();
- }
- }
-
yaz4jlib.ZOOM_resultset_destroy(resultSet);
- connection = null;
resultSet = null;
+ conn = null;
disposed = true;
}
}