Examples of com.sleepycat.persist.EntityJoin.keys()

com.sleepycat.persist.EntityJoin.keys()

Opens a cursor that returns the primary keys of entities qualifying for the join. The join operation is performed as the returned cursor is accessed.

The operations performed with the cursor will not be transaction protected, and {@link CursorConfig#DEFAULT} is used implicitly.

@return the cursor. @throws OperationFailureException if one of the Read Operation Failures occurs. @throws EnvironmentFailureException if an unexpected, internal orenvironment-wide failure occurs. @throws IllegalStateException if less than two conditions were added. @throws DatabaseException the base class for all BDB exceptions.

        List<Integer> found;
        Transaction txn = txnBegin();


        /* Keys */
        found = new ArrayList<Integer>();
        ForwardCursor<Integer> keys = join.keys(txn, null);
        for (int i : keys) {
            found.add(i);
        }
        keys.close();
        assertEquals(expect, found);

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.