/*
* Copyright 2004-2023 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.result;
import org.h2.engine.Session;
import org.h2.value.Value;
/**
* Abstract fetched result.
*/
public abstract class FetchedResult implements ResultInterface {
long rowId = -1;
Value[] currentRow;
Value[] nextRow;
boolean afterLast;
FetchedResult() {
}
@Override
public final Value[] currentRow() {
return currentRow;
}
@Override
public final boolean next() {
if (hasNext()) {
rowId++;
currentRow = nextRow;
nextRow = null;
return true;
}
if (!afterLast) {
rowId++;
currentRow = null;
afterLast = true;
}
return false;
}
@Override
public final boolean isAfterLast() {
return afterLast;
}
@Override
public final long getRowId() {
return rowId;
}
@Override
public final boolean needToClose() {
return true;
}
@Override
public final ResultInterface createShallowCopy(Session targetSession) {
// The operation is not supported on fetched result.
return null;
}
}