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

Example 96 with PageCursor

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

the class CompositePageCursorTest method getByteMustHitSecondCursorAfterFlip.

@Test
public void getByteMustHitSecondCursorAfterFlip() throws Exception {
    PageCursor c = CompositePageCursor.compose(first, 1, second, 1);
    assertThat(c.getByte(), is((byte) 0xA0));
    assertThat(c.getByte(), is((byte) 0xB0));
    assertFalse(c.checkAndClearBoundsFlag());
}

Example 97 with PageCursor

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

the class CompositePageCursorTest method putIntWithOffsetMustHitCorrectCursors.

@Test
public void putIntWithOffsetMustHitCorrectCursors() throws Exception {
    first.setOffset(1);
    second.setOffset(2);
    PageCursor c = CompositePageCursor.compose(first, 2 * 4, second, 2 * 4);
    c.putInt(4, 1);
    c.putInt(4 + 4, 2);
    assertThat(c.getInt(), is(0xA1A2A3A4));
    assertThat(c.getInt(), is(1));
    assertThat(c.getInt(), is(2));
    assertThat(c.getInt(), is(0xB6B7B8B9));
    assertFalse(c.checkAndClearBoundsFlag());
}

Example 98 with PageCursor

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

the class CompositePageCursorTest method putIntOffsettedBeyondEndOfViewMustRaiseBoundsFlag.

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

Example 99 with PageCursor

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

the class CompositePageCursorTest method getShortMustRespectOffsetIntoSecondCursor.

@Test
public void getShortMustRespectOffsetIntoSecondCursor() throws Exception {
    second.setOffset(1);
    PageCursor c = CompositePageCursor.compose(first, 2, second, 2);
    assertThat(c.getShort(), is((short) 0xA0A1));
    assertThat(c.getShort(), is((short) 0xB1B2));
    assertFalse(c.checkAndClearBoundsFlag());
}

Example 100 with PageCursor

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

the class CompositePageCursorTest method getShortMustHitSecondCursorAfterFlip.

@Test
public void getShortMustHitSecondCursorAfterFlip() throws Exception {
    PageCursor c = CompositePageCursor.compose(first, 2, second, 2);
    assertThat(c.getShort(), is((short) 0xA0A1));
    assertThat(c.getShort(), is((short) 0xB0B1));
    assertFalse(c.checkAndClearBoundsFlag());
}