Examples with CompareMode org.h2.value.CompareMode used on opensource projects

Example 6 with CompareMode

use of org.h2.value.CompareMode in project h2database by h2database.

the class PageStore method addMeta.

/**
 * Add the meta data of an index.
 *
 * @param index the index to add
 * @param session the session
 */
public void addMeta(PageIndex index, Session session) {
    Table table = index.getTable();
    if (SysProperties.CHECK) {
        if (!table.isTemporary()) {
            // the Database lock before we take the PageStore lock
            synchronized (database) {
                synchronized (this) {
                    database.verifyMetaLocked(session);
                }
            }
        }
    }
    synchronized (this) {
        int type = index instanceof PageDataIndex ? META_TYPE_DATA_INDEX : META_TYPE_BTREE_INDEX;
        IndexColumn[] columns = index.getIndexColumns();
        StatementBuilder buff = new StatementBuilder();
        for (IndexColumn col : columns) {
            buff.appendExceptFirst(",");
            int id = col.column.getColumnId();
            buff.append(id);
            int sortType = col.sortType;
            if (sortType != 0) {
                buff.append('/');
                buff.append(sortType);
            }
        }
        String columnList = buff.toString();
        CompareMode mode = table.getCompareMode();
        String options = mode.getName() + "," + mode.getStrength() + ",";
        if (table.isTemporary()) {
            options += "temp";
        }
        options += ",";
        if (index instanceof PageDelegateIndex) {
            options += "d";
        }
        options += "," + mode.isBinaryUnsigned();
        Row row = metaTable.getTemplateRow();
        row.setValue(0, ValueInt.get(index.getId()));
        row.setValue(1, ValueInt.get(type));
        row.setValue(2, ValueInt.get(table.getId()));
        row.setValue(3, ValueInt.get(index.getRootPageId()));
        row.setValue(4, ValueString.get(options));
        row.setValue(5, ValueString.get(columnList));
        row.setKey(index.getId() + 1);
        metaIndex.add(session, row);
    }
}

Example 7 with CompareMode

use of org.h2.value.CompareMode in project h2database by h2database.

the class MVSecondaryIndex method addBufferedRows.

@Override
public void addBufferedRows(List<String> bufferNames) {
    ArrayList<String> mapNames = new ArrayList<>(bufferNames);
    CompareMode compareMode = database.getCompareMode();
    int buffersCount = bufferNames.size();
    Queue<Source> queue = new PriorityQueue<>(buffersCount, new Source.Comparator(compareMode));
    for (String bufferName : bufferNames) {
        Iterator<ValueArray> iter = openMap(bufferName).keyIterator(null);
        if (iter.hasNext()) {
            queue.add(new Source(iter));
        }
    }
    try {
        while (!queue.isEmpty()) {
            Source s = queue.remove();
            ValueArray rowData = s.next();
            if (indexType.isUnique()) {
                Value[] array = rowData.getList();
                // don't change the original value
                array = array.clone();
                array[keyColumns - 1] = ValueLong.MIN;
                ValueArray unique = ValueArray.get(array);
                SearchRow row = convertToSearchRow(rowData);
                if (!mayHaveNullDuplicates(row)) {
                    requireUnique(row, dataMap, unique);
                }
            }
            dataMap.putCommitted(rowData, ValueNull.INSTANCE);
            if (s.hasNext()) {
                queue.offer(s);
            }
        }
    } finally {
        for (String tempMapName : mapNames) {
            MVMap<ValueArray, Value> map = openMap(tempMapName);
            map.getStore().removeMap(map);
        }
    }
}

Example 8 with CompareMode

use of org.h2.value.CompareMode in project h2database by h2database.

the class TestValueHashMap method testRandomized.

private void testRandomized() {
    ValueHashMap<Value> map = ValueHashMap.newInstance();
    HashMap<Value, Value> hash = new HashMap<>();
    Random random = new Random(1);
    Comparator<Value> vc = new Comparator<Value>() {

        @Override
        public int compare(Value v1, Value v2) {
            return v1.compareTo(v2, compareMode);
        }
    };
    for (int i = 0; i < 10000; i++) {
        int op = random.nextInt(10);
        Value key = ValueInt.get(random.nextInt(100));
        Value value = ValueInt.get(random.nextInt(100));
        switch(op) {
            case 0:
                map.put(key, value);
                hash.put(key, value);
                break;
            case 1:
                map.remove(key);
                hash.remove(key);
                break;
            case 2:
                Value v1 = map.get(key);
                Value v2 = hash.get(key);
                assertTrue(v1 == null ? v2 == null : v1.equals(v2));
                break;
            case 3:
                {
                    ArrayList<Value> a1 = map.keys();
                    ArrayList<Value> a2 = new ArrayList<>(hash.keySet());
                    assertEquals(a1.size(), a2.size());
                    Collections.sort(a1, vc);
                    Collections.sort(a2, vc);
                    for (int j = 0; j < a1.size(); j++) {
                        assertTrue(a1.get(j).equals(a2.get(j)));
                    }
                    break;
                }
            case 4:
                ArrayList<Value> a1 = map.values();
                ArrayList<Value> a2 = new ArrayList<>(hash.values());
                assertEquals(a1.size(), a2.size());
                Collections.sort(a1, vc);
                Collections.sort(a2, vc);
                for (int j = 0; j < a1.size(); j++) {
                    assertTrue(a1.get(j).equals(a2.get(j)));
                }
                break;
            default:
        }
    }
}

Example 9 with CompareMode

use of org.h2.value.CompareMode in project h2database by h2database.

the class TestDataPage method testValue.

private void testValue(Value v) {
    Data data = Data.create(null, 1024);
    data.checkCapacity((int) v.getPrecision());
    data.writeValue(v);
    data.writeInt(123);
    data.reset();
    Value v2 = data.readValue();
    assertEquals(v.getType(), v2.getType());
    assertEquals(0, v.compareTo(v2, compareMode));
    assertEquals(123, data.readInt());
}

Example 10 with CompareMode

use of org.h2.value.CompareMode in project h2database by h2database.

the class JdbcResultSet method patchCurrentRow.

private void patchCurrentRow(Value[] row) {
    boolean changed = false;
    Value[] current = result.currentRow();
    CompareMode mode = conn.getCompareMode();
    for (int i = 0; i < row.length; i++) {
        if (row[i].compareTo(current[i], mode) != 0) {
            changed = true;
            break;
        }
    }
    if (patchedRows == null) {
        patchedRows = new HashMap<>();
    }
    Integer rowId = result.getRowId();
    if (!changed) {
        patchedRows.remove(rowId);
    } else {
        patchedRows.put(rowId, row);
    }
}