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

Example 31 with MVStore

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

the class TestStreamStore method testLarge.

private void testLarge() throws IOException {
    String fileName = getBaseDir() + "/testVeryLarge.h3";
    FileUtils.delete(fileName);
    final MVStore s = new MVStore.Builder().fileName(fileName).open();
    MVMap<Long, byte[]> map = s.openMap("data");
    final AtomicInteger count = new AtomicInteger();
    StreamStore streamStore = new StreamStore(map) {

        @Override
        protected void onStore(int len) {
            count.incrementAndGet();
            s.commit();
        }
    };
    long size = 1 * 1024 * 1024;
    streamStore.put(new RandomStream(size, 0));
    s.close();
    assertEquals(4, count.get());
}

Example 32 with MVStore

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

the class TestKillProcessWhileWriting method verify.

private void verify() {
    MVStore s;
    MVMap<Integer, byte[]> m;
    FileUtils.delete(fileName);
    s = new MVStore.Builder().fileName(fileName).open();
    m = s.openMap("data");
    for (int i = 0; i < 100; i++) {
        byte[] x = m.get(i);
        if (x == null) {
            break;
        }
        assertEquals(i * 100, x.length);
    }
    s.close();
}

Example 33 with MVStore

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

the class TestMVStore method testCacheInfo.

private void testCacheInfo() {
    String fileName = getBaseDir() + "/" + getTestName();
    FileUtils.delete(fileName);
    MVStore s = new MVStore.Builder().fileName(fileName).cacheSize(2).open();
    assertEquals(2, s.getCacheSize());
    MVMap<Integer, byte[]> map;
    map = s.openMap("data");
    byte[] data = new byte[1024];
    for (int i = 0; i < 1000; i++) {
        map.put(i, data);
        s.commit();
        if (i < 50) {
            assertEquals(0, s.getCacheSizeUsed());
        } else if (i > 300) {
            assertTrue(s.getCacheSizeUsed() >= 1);
        }
    }
    s.close();
    s = new MVStore.Builder().open();
    assertEquals(0, s.getCacheSize());
    assertEquals(0, s.getCacheSizeUsed());
    s.close();
}

Example 34 with MVStore

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

the class TestMVStore method testMinMaxNextKey.

private void testMinMaxNextKey() {
    MVStore s = openStore(null);
    MVMap<Integer, Integer> map = s.openMap("test");
    map.put(10, 100);
    map.put(20, 200);
    assertEquals(10, map.firstKey().intValue());
    assertEquals(20, map.lastKey().intValue());
    assertEquals(20, map.ceilingKey(15).intValue());
    assertEquals(20, map.ceilingKey(20).intValue());
    assertEquals(10, map.floorKey(15).intValue());
    assertEquals(10, map.floorKey(10).intValue());
    assertEquals(20, map.higherKey(10).intValue());
    assertEquals(10, map.lowerKey(20).intValue());
    final MVMap<Integer, Integer> m = map;
    assertEquals(10, m.ceilingKey(null).intValue());
    assertEquals(10, m.higherKey(null).intValue());
    assertNull(m.lowerKey(null));
    assertNull(m.floorKey(null));
    for (int i = 3; i < 20; i++) {
        s = openStore(null, 4);
        map = s.openMap("test");
        for (int j = 3; j < i; j++) {
            map.put(j * 2, j * 20);
        }
        if (i == 3) {
            assertNull(map.firstKey());
            assertNull(map.lastKey());
        } else {
            assertEquals(6, map.firstKey().intValue());
            int max = (i - 1) * 2;
            assertEquals(max, map.lastKey().intValue());
            for (int j = 0; j < i * 2 + 2; j++) {
                if (j > max) {
                    assertNull(map.ceilingKey(j));
                } else {
                    int ceiling = Math.max((j + 1) / 2 * 2, 6);
                    assertEquals(ceiling, map.ceilingKey(j).intValue());
                }
                int floor = Math.min(max, Math.max(j / 2 * 2, 4));
                if (floor < 6) {
                    assertNull(map.floorKey(j));
                } else {
                    map.floorKey(j);
                }
                int lower = Math.min(max, Math.max((j - 1) / 2 * 2, 4));
                if (lower < 6) {
                    assertNull(map.lowerKey(j));
                } else {
                    assertEquals(lower, map.lowerKey(j).intValue());
                }
                int higher = Math.max((j + 2) / 2 * 2, 6);
                if (higher > max) {
                    assertNull(map.higherKey(j));
                } else {
                    assertEquals(higher, map.higherKey(j).intValue());
                }
            }
        }
    }
}

Example 35 with MVStore

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

the class TestMVStore method testCloseTwice.

private void testCloseTwice() {
    String fileName = getBaseDir() + "/" + getTestName();
    FileUtils.delete(fileName);
    MVStore s = openStore(fileName);
    MVMap<Integer, String> m = s.openMap("data");
    for (int i = 0; i < 3; i++) {
        m.put(i, "hello " + i);
    }
    // closing twice should be fine
    s.close();
    s.close();
}