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

Example 41 with PageCursor

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

the class CompositePageCursorTest method putShortOffsettedBeyondEndOfViewMustRaiseBoundsFlag.

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

Example 42 with PageCursor

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

the class CompositePageCursorTest method putIntMustRespectOffsetIntoSecondCursor.

@Test
public void putIntMustRespectOffsetIntoSecondCursor() throws Exception {
    second.setOffset(1);
    PageCursor c = CompositePageCursor.compose(first, 4, second, 8);
    c.putInt(1);
    c.putInt(2);
    assertThat(second.getInt(1), is(2));
    assertThat(c.getInt(), is(0xB5B6B7B8));
    assertFalse(c.checkAndClearBoundsFlag());
}

Example 43 with PageCursor

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

the class CompositePageCursorTest method getByteOffsettedBeyondEndOfViewMustRaiseBoundsFlag.

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

Example 44 with PageCursor

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

the class CompositePageCursorTest method putIntMustHitFirstCursorBeforeFlip.

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

Example 45 with PageCursor

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

the class CompositePageCursorTest method putByteMustHitFirstCursorBeforeFlip.

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