@Override
public Row next() {
if (TAP_NEXT_ENABLED) {
TAP_NEXT.in();
}
try {
if (CURSOR_LIFECYCLE_ENABLED) {
CursorLifecycle.checkIdleOrActive(this);
}
Row row;
do {
row = inputCursor.next();
if (row == null) {
close();
} else if (!filter.maybePresent(hashProjectedRow(row)) || !rowReallyHasMatch(row)) {
row = null;
}
} while (!idle && row == null);
if (LOG_EXECUTION) {
LOG.debug("Select_BloomFilter: yield {}", row);
}
return row;
} finally {
if (TAP_NEXT_ENABLED) {
TAP_NEXT.out();
}
}
}
@Override
public void close() {
CursorLifecycle.checkIdleOrActive(this);
if (!idle) {
inputCursor.close();
idle = true;
}
}
@Override
public void open() {
TAP_OPEN.in();
try {
CursorLifecycle.checkIdle(this);
filter = bindings.getBloomFilter(bindingPosition);
bindings.setBloomFilter(bindingPosition, null);
inputCursor.open();
idle = false;
} finally {
TAP_OPEN.out();
}
}
@Override
public Row next() {
if (TAP_NEXT_ENABLED) {
TAP_NEXT.in();
}
try {
if (CURSOR_LIFECYCLE_ENABLED) {
CursorLifecycle.checkIdleOrActive(this);
}
checkQueryCancelation();
Row row = null;
while (true) {
QueryBindings bindings = input.nextBindings();
if (bindings == null) {
openBindings = null;
break;
}
if (bindings.getDepth() < depth) {
pendingBindings = bindings;
openBindings = null;
break;
}
assert (bindings.getDepth() == depth);
input.open();
inputOpenBindings = bindings;
row = input.next();
input.close();
inputOpenBindings = null;
if (row != null) {
row = bindings.getRow(bindingPosition);
break;
}
}
if (LOG_EXECUTION) {
LOG.debug("Select_BloomFilter: yield {}", row);
}
return row;
} finally {
if (TAP_NEXT_ENABLED) {
TAP_NEXT.out();
}
}
}
