Examples with Cursor jetbrains.exodus.env.Cursor used on opensource projects

Example 1 with Cursor

use of jetbrains.exodus.env.Cursor in project xodus by JetBrains.

the class CursorTestBase method check.

protected void check(ITree tm, GetPrev r) {
    Cursor c = tm.openCursor();
    for (int i = 0; i < s; i++) {
        assertEquals(true, r.p(c));
        assertEquals(c.getValue(), value("v" + (s - i - 1)));
        assertEquals(c.getKey(), key(s - i - 1));
    }
    assertEquals(false, r.p(c));
    c.close();
}

Example 2 with Cursor

use of jetbrains.exodus.env.Cursor in project xodus by JetBrains.

the class TreeCursorConcurrentModificationTest method testConcurrentDeleteCurrent.

@Test
public void testConcurrentDeleteCurrent() {
    Cursor c = tm.openCursor();
    c.getSearchKey(key(2));
    deleteImpl(key(2));
    assertTrue(c.getNext());
    assertEquals(key(3), c.getKey());
}

Example 3 with Cursor

use of jetbrains.exodus.env.Cursor in project xodus by JetBrains.

the class TreeCursorConcurrentModificationTest method testConcurrentDeleteAfter.

@Test
public void testConcurrentDeleteAfter() {
    Cursor c = tm.openCursor();
    c.getSearchKey(key(2));
    deleteImpl(key(3));
    assertTrue(c.getNext());
    assertEquals(key(4), c.getKey());
}

Example 4 with Cursor

use of jetbrains.exodus.env.Cursor in project xodus by JetBrains.

the class TreeCursorDuplicatesTest method testGetSearchKeyRange3.

@Test
public void testGetSearchKeyRange3() throws IOException {
    tm = createMutableTree(true, 1);
    getTreeMutable().put(kv(1, "v1"));
    getTreeMutable().put(kv(2, "v2"));
    getTreeMutable().put(kv(3, "v3"));
    getTreeMutable().put(kv(5, "v51"));
    getTreeMutable().put(kv(5, "v52"));
    getTreeMutable().put(kv(5, "v53"));
    getTreeMutable().put(kv(7, "v7"));
    getTreeMutable().put(kv(8, "v8"));
    // assertMatches(getTreeMutable(), IP(BP(3), BP(3)));
    final TreeAwareRunnable getSearchKeyRange = new TreeAwareRunnable(getTreeMutable()) {

        @Override
        public void run() {
            Cursor c = _t.openCursor();
            assertEquals(value("v51"), c.getSearchKeyRange(key(4)));
            assertEquals(key(5), c.getKey());
        }
    };
    getSearchKeyRange.run();
    long a = saveTree();
    getSearchKeyRange.run();
    reopen();
    getSearchKeyRange.setTree(openTree(a, true));
    getSearchKeyRange.run();
}

Example 5 with Cursor

use of jetbrains.exodus.env.Cursor in project xodus by JetBrains.

the class TreeCursorDuplicatesTest method testGetNextDup.

@Test
public void testGetNextDup() throws IOException {
    final TreeAwareRunnable getNextDup = new TreeAwareRunnable(getTreeMutable()) {

        @Override
        public void run() {
            Cursor c = _t.openCursor();
            assertEquals(value("v1"), c.getSearchKey(key(1)));
            assertFalse(c.getNextDup());
            // 51
            c.getSearchKey(key(5));
            // 52
            assertTrue(c.getNextDup());
            // 53
            assertTrue(c.getNextDup());
            assertFalse(c.getNextDup());
            c.getSearchKey(key(12));
            assertFalse(c.getNextDup());
        }
    };
    getNextDup.run();
    long a = saveTree();
    getNextDup.run();
    reopen();
    getNextDup.setTree(openTree(a, true));
    getNextDup.run();
}