Examples with PageCursor org.neo4j.io.pagecache.PageCursor used on opensource projects

Example 26 with PageCursor

use of org.neo4j.io.pagecache.PageCursor in project neo4j by neo4j.

the class CompositePageCursorTest method putShortBeyondEndOfViewMustRaiseBoundsFlag.

@Test
public void putShortBeyondEndOfViewMustRaiseBoundsFlag() throws Exception {
    PageCursor pageCursor = CompositePageCursor.compose(first, PAGE_SIZE, second, PAGE_SIZE);
    for (int i = 0; i < 3 * PAGE_SIZE; i++) {
        pageCursor.putShort((short) 1);
    }
    assertTrue(pageCursor.checkAndClearBoundsFlag());
    assertFalse(pageCursor.checkAndClearBoundsFlag());
}

Example 27 with PageCursor

use of org.neo4j.io.pagecache.PageCursor in project neo4j by neo4j.

the class CompositePageCursorTest method getByteWithOffsetMustHitCorrectCursors.

@Test
public void getByteWithOffsetMustHitCorrectCursors() throws Exception {
    first.setOffset(1);
    second.setOffset(2);
    PageCursor c = CompositePageCursor.compose(first, 1 + 1, second, 1);
    assertThat(c.getByte(1), is((byte) 0xA2));
    assertThat(c.getByte(1 + 1), is((byte) 0xB2));
    assertFalse(c.checkAndClearBoundsFlag());
}

Example 28 with PageCursor

use of org.neo4j.io.pagecache.PageCursor in project neo4j by neo4j.

the class CompositePageCursorTest method putShortMustHitFirstCursorBeforeFlip.

@Test
public void putShortMustHitFirstCursorBeforeFlip() throws Exception {
    PageCursor c = CompositePageCursor.compose(first, 2, second, 2);
    c.putShort((short) 1);
    c.setOffset(0);
    assertThat(c.getShort(), is((short) 1));
    assertFalse(c.checkAndClearBoundsFlag());
}

Example 29 with PageCursor

use of org.neo4j.io.pagecache.PageCursor in project neo4j by neo4j.

the class CompositePageCursorTest method putShortMustHitSecondCursorAfterFlip.

@Test
public void putShortMustHitSecondCursorAfterFlip() throws Exception {
    PageCursor c = CompositePageCursor.compose(first, 2, second, 2);
    c.putShort((short) 1);
    c.putShort((short) 2);
    c.setOffset(2);
    assertThat(c.getShort(), is((short) 2));
    assertFalse(c.checkAndClearBoundsFlag());
}

Example 30 with PageCursor

use of org.neo4j.io.pagecache.PageCursor in project neo4j by neo4j.

the class CompositePageCursorTest method putIntBeyondEndOfViewMustRaiseBoundsFlag.

@Test
public void putIntBeyondEndOfViewMustRaiseBoundsFlag() throws Exception {
    PageCursor pageCursor = CompositePageCursor.compose(first, PAGE_SIZE, second, PAGE_SIZE);
    for (int i = 0; i < 3 * PAGE_SIZE; i++) {
        pageCursor.putInt(1);
    }
    assertTrue(pageCursor.checkAndClearBoundsFlag());
    assertFalse(pageCursor.checkAndClearBoundsFlag());
}