Package org.xtreemfs.babudb.api.database

Examples of org.xtreemfs.babudb.api.database.Database.lookup()

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        assertNotNull(db);
        assertEquals("test2", db.getName());
        assertEquals(1, db.getComparators().length);
       
        // check if the key got deleted
        value = db.lookup(0, "hello".getBytes(), null).get();
        assertNull(value);
       
        // create and execute a third transaction
        txn = dbMan.createTransaction();
        txn.deleteDatabase("test");
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        assertNotNull(db);
        assertEquals("test", db.getName());
        assertEquals(2, db.getComparators().length);
       
        // check if the records are there
        byte[] value = db.lookup(0, "hello".getBytes(), null).get();
        assertEquals("world", new String(value));
       
        value = db.lookup(1, "key".getBytes(), null).get();
        assertEquals("value", new String(value));
       
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        // check if the records are there
        byte[] value = db.lookup(0, "hello".getBytes(), null).get();
        assertEquals("world", new String(value));
       
        value = db.lookup(1, "key".getBytes(), null).get();
        assertEquals("value", new String(value));
       
        // enforce a checkpoint
        database.getCheckpointer().checkpoint();
       
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        assertNotNull(db);
        assertEquals("test", db.getName());
        assertEquals(2, db.getComparators().length);
       
        // check if the records are there
        value = db.lookup(0, "hello".getBytes(), null).get();
        assertEquals("world", new String(value));
       
        value = db.lookup(1, "key".getBytes(), null).get();
        assertEquals("value", new String(value));
       
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        // check if the records are there
        value = db.lookup(0, "hello".getBytes(), null).get();
        assertEquals("world", new String(value));
       
        value = db.lookup(1, "key".getBytes(), null).get();
        assertEquals("value", new String(value));
       
    }
   
    @Test
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        txn.deleteRecord(db2.getName(), 2, "97".getBytes());
        database.getDatabaseManager().executeTransaction(txn);
        assertNull(db0.lookup(0, "99".getBytes(), null).get());
        assertNull(db0.lookup(0, "98".getBytes(), null).get());
        assertNull(db0.lookup(0, "97".getBytes(), null).get());
        assertNull(db2.lookup(2, "99".getBytes(), null).get());
        assertNull(db2.lookup(2, "98".getBytes(), null).get());
        assertNull(db2.lookup(2, "97".getBytes(), null).get());
    }
   
    @Test
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        database.getDatabaseManager().executeTransaction(txn);
        assertNull(db0.lookup(0, "99".getBytes(), null).get());
        assertNull(db0.lookup(0, "98".getBytes(), null).get());
        assertNull(db0.lookup(0, "97".getBytes(), null).get());
        assertNull(db2.lookup(2, "99".getBytes(), null).get());
        assertNull(db2.lookup(2, "98".getBytes(), null).get());
        assertNull(db2.lookup(2, "97".getBytes(), null).get());
    }
   
    @Test
    public void testTransactionListeners() throws Exception {
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        assertNull(db0.lookup(0, "99".getBytes(), null).get());
        assertNull(db0.lookup(0, "98".getBytes(), null).get());
        assertNull(db0.lookup(0, "97".getBytes(), null).get());
        assertNull(db2.lookup(2, "99".getBytes(), null).get());
        assertNull(db2.lookup(2, "98".getBytes(), null).get());
        assertNull(db2.lookup(2, "97".getBytes(), null).get());
    }
   
    @Test
    public void testTransactionListeners() throws Exception {
       
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