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

Example 36 with Cursor

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

the class TreeCursorDuplicatesTest method testGetNextNoDup2.

@Test
public void testGetNextNoDup2() throws IOException {
    Cursor c = tm.openCursor();
    assertEquals(value("v1"), c.getSearchKey(key(1)));
    assertFalse(c.getNextDup());
    // 51
    c.getSearchKey(key(5));
    c.deleteCurrent();
    assertTrue(c.getNextNoDup());
    assertEquals(key(7), c.getKey());
    assertEquals(value("v7"), c.getValue());
}

Example 37 with Cursor

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

the class TreeCursorDuplicatesTest method testGetSearchKeyRange2.

@Test
public void testGetSearchKeyRange2() throws IOException {
    final TreeAwareRunnable getSearchKeyRange = new TreeAwareRunnable(getTreeMutable()) {

        @Override
        public void run() {
            Cursor c = _t.openCursor();
            assertEquals(value("v1"), c.getSearchKeyRange(key(0)));
            assertEquals(key(1), c.getKey());
            assertEquals(value("v51"), c.getSearchKeyRange(key(3)));
            assertEquals(key(5), c.getKey());
            assertEquals(true, c.getNextDup());
            assertEquals(value("v52"), c.getValue());
            assertEquals(key(5), c.getKey());
            assertEquals(true, c.getNextDup());
            assertEquals(value("v53"), c.getValue());
            assertEquals(key(5), c.getKey());
            assertEquals(null, c.getSearchKeyRange(key(13)));
            // cursor keep prev pos
            assertEquals(value("v53"), c.getValue());
            assertEquals(key(5), c.getKey());
        }
    };
    getSearchKeyRange.run();
    long a = saveTree();
    getSearchKeyRange.run();
    reopen();
    getSearchKeyRange.setTree(openTree(a, true));
    getSearchKeyRange.run();
}

Example 38 with Cursor

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

the class TreeCursorDuplicatesTest method testGetPrev2.

@Test
public void testGetPrev2() throws IOException {
    tm = createMutableTree(true, 1);
    values.clear();
    values.add(kv(0, "v0"));
    values.add(kv(0, "v1"));
    values.add(kv(1, "v1"));
    for (INode ln : values) {
        getTreeMutable().put(ln);
        valuesNoDup.add(ln);
    }
    final TreeAwareRunnable getPrev = new TreeAwareRunnable(getTreeMutable()) {

        @Override
        public void run() {
            Cursor c = _t.openCursor();
            final ListIterator<INode> itr = values.listIterator(values.size());
            while (itr.hasPrevious()) {
                INode ln = itr.previous();
                assertEquals(true, c.getPrev());
                assertEquals(ln.getValue(), c.getValue());
                assertEquals(ln.getKey(), c.getKey());
            }
            assertEquals(false, c.getPrev());
        }
    };
    getPrev.run();
    long a = saveTree();
    getPrev.run();
    reopen();
    getPrev.setTree(openTree(a, true));
    getPrev.run();
}

Example 39 with Cursor

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

the class TreeCursorDuplicatesTest method testGetSearchBothRange1.

@Test
public void testGetSearchBothRange1() throws IOException {
    final TreeAwareRunnable getSearchBothRange = new TreeAwareRunnable(getTreeMutable()) {

        @Override
        public void run() {
            Cursor c = _t.openCursor();
            for (INode ln : values) {
                assertEquals(ln.getValue(), c.getSearchBothRange(ln.getKey(), ln.getValue()));
                assertEquals(ln.getValue(), c.getValue());
                assertEquals(ln.getKey(), c.getKey());
            }
        }
    };
    getSearchBothRange.run();
    long a = saveTree();
    getSearchBothRange.run();
    reopen();
    getSearchBothRange.setTree(openTree(a, true));
    getSearchBothRange.run();
}

Example 40 with Cursor

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

the class TreeCursorNoDuplicatesTest method testGetSearchKeyRange1.

@Test
public void testGetSearchKeyRange1() throws IOException {
    Cursor c = getTreeMutable().openCursor();
    for (int i = 0; i < s; i++) {
        assertEquals(value("v" + i), c.getSearchKeyRange(key(i)));
        assertEquals(c.getValue(), value("v" + i));
        assertEquals(c.getKey(), key(i));
    }
    assertFalse(c.getNext());
}