Examples with MVStore org.h2.mvstore.MVStore used on opensource projects

Example 41 with MVStore

use of org.h2.mvstore.MVStore in project h2database by h2database.

the class TestMVStore method testFileHeader.

private void testFileHeader() {
    String fileName = getBaseDir() + "/" + getTestName();
    FileUtils.delete(fileName);
    MVStore s = openStore(fileName);
    s.setRetentionTime(Integer.MAX_VALUE);
    long time = System.currentTimeMillis();
    Map<String, Object> m = s.getStoreHeader();
    assertEquals("1", m.get("format").toString());
    long creationTime = (Long) m.get("created");
    assertTrue(Math.abs(time - creationTime) < 100);
    m.put("test", "123");
    forceWriteStoreHeader(s);
    s.close();
    s = openStore(fileName);
    Object test = s.getStoreHeader().get("test");
    assertNotNull(test);
    assertEquals("123", test.toString());
    s.close();
}

Example 42 with MVStore

use of org.h2.mvstore.MVStore in project h2database by h2database.

the class TestMVStore method testRemoveMapRollback.

private void testRemoveMapRollback() {
    MVStore store = new MVStore.Builder().open();
    MVMap<String, String> map = store.openMap("test");
    map.put("1", "Hello");
    store.commit();
    store.removeMap(map);
    store.rollback();
    assertTrue(store.hasMap("test"));
    map = store.openMap("test");
    // TODO the data should get back alive
    assertNull(map.get("1"));
    store.close();
    String fileName = getBaseDir() + "/" + getTestName();
    FileUtils.delete(fileName);
    store = new MVStore.Builder().autoCommitDisabled().fileName(fileName).open();
    map = store.openMap("test");
    map.put("1", "Hello");
    store.commit();
    store.removeMap(map);
    store.rollback();
    assertTrue(store.hasMap("test"));
    map = store.openMap("test");
    // the data will get back alive
    assertEquals("Hello", map.get("1"));
    store.close();
}

Example 43 with MVStore

use of org.h2.mvstore.MVStore in project h2database by h2database.

the class TestMVStore method testVersionsToKeep2.

private void testVersionsToKeep2() {
    MVStore s = new MVStore.Builder().autoCommitDisabled().open();
    s.setVersionsToKeep(2);
    final MVMap<Integer, String> m = s.openMap("data");
    s.commit();
    assertEquals(1, s.getCurrentVersion());
    m.put(1, "version 1");
    s.commit();
    assertEquals(2, s.getCurrentVersion());
    m.put(1, "version 2");
    s.commit();
    assertEquals(3, s.getCurrentVersion());
    m.put(1, "version 3");
    s.commit();
    m.put(1, "version 4");
    assertEquals("version 4", m.openVersion(4).get(1));
    assertEquals("version 3", m.openVersion(3).get(1));
    assertEquals("version 2", m.openVersion(2).get(1));
    new AssertThrows(IllegalArgumentException.class) {

        @Override
        public void test() throws Exception {
            m.openVersion(1);
        }
    };
    s.close();
}

Example 44 with MVStore

use of org.h2.mvstore.MVStore in project h2database by h2database.

the class TestMVStore method testCustomMapType.

private void testCustomMapType() {
    String fileName = getBaseDir() + "/" + getTestName();
    FileUtils.delete(fileName);
    MVStore s = openStore(fileName);
    SequenceMap seq = s.openMap("data", new SequenceMap.Builder());
    StringBuilder buff = new StringBuilder();
    for (long x : seq.keySet()) {
        buff.append(x).append(';');
    }
    assertEquals("1;2;3;4;5;6;7;8;9;10;", buff.toString());
    s.close();
}

Example 45 with MVStore

use of org.h2.mvstore.MVStore in project h2database by h2database.

the class TestMVStore method testNewerWriteVersion.

private void testNewerWriteVersion() throws Exception {
    String fileName = getBaseDir() + "/" + getTestName();
    FileUtils.delete(fileName);
    MVStore s = new MVStore.Builder().encryptionKey("007".toCharArray()).fileName(fileName).open();
    s.setRetentionTime(Integer.MAX_VALUE);
    Map<String, Object> header = s.getStoreHeader();
    assertEquals("1", header.get("format").toString());
    header.put("formatRead", "1");
    header.put("format", "2");
    forceWriteStoreHeader(s);
    MVMap<Integer, String> m = s.openMap("data");
    forceWriteStoreHeader(s);
    m.put(0, "Hello World");
    s.close();
    try {
        s = new MVStore.Builder().encryptionKey("007".toCharArray()).fileName(fileName).open();
        header = s.getStoreHeader();
        fail(header.toString());
    } catch (IllegalStateException e) {
        assertEquals(DataUtils.ERROR_UNSUPPORTED_FORMAT, DataUtils.getErrorCode(e.getMessage()));
    }
    s = new MVStore.Builder().encryptionKey("007".toCharArray()).readOnly().fileName(fileName).open();
    assertTrue(s.getFileStore().isReadOnly());
    m = s.openMap("data");
    assertEquals("Hello World", m.get(0));
    s.close();
    FileUtils.setReadOnly(fileName);
    s = new MVStore.Builder().encryptionKey("007".toCharArray()).fileName(fileName).open();
    assertTrue(s.getFileStore().isReadOnly());
    m = s.openMap("data");
    assertEquals("Hello World", m.get(0));
    s.close();
}