Package org.lealone.dbobject.table

Examples of org.lealone.dbobject.table.Column

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        } catch (SQLException e) {
            throw DbException.convert(e);
        }
        current = tableLink.getTemplateRow();
        for (int i = 0; i < current.getColumnCount(); i++) {
            Column col = tableLink.getColumn(i);
            Value v = DataType.readValue(session, rs, i + 1, col.getType());
            current.setValue(i, v);
        }
        return true;
    }
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            IndexCondition condition = indexConditions.get(i);
            if (condition.isAlwaysFalse()) {
                alwaysFalse = true;
                break;
            }
            Column column = condition.getColumn();
            if (condition.getCompareType() == Comparison.IN_LIST) {
                if (start == null && end == null) {
                    if (canUseIndexForIn(column)) {
                        this.inColumn = column;
                        inList = condition.getCurrentValueList(s);
                        inListIndex = 0;
                    }
                }
            } else if (condition.getCompareType() == Comparison.IN_QUERY) {
                if (start == null && end == null) {
                    if (canUseIndexForIn(column)) {
                        this.inColumn = column;
                        inResult = condition.getCurrentResult();
                    }
                }
            } else {
                Value v = condition.getCurrentValue(s);
                boolean isStart = condition.isStart();
                boolean isEnd = condition.isEnd();
                int id = column.getColumnId();
                if (id >= 0) {
                    IndexColumn idxCol = indexColumns[id];
                    if (idxCol != null && (idxCol.sortType & SortOrder.DESCENDING) != 0) {
                        // if the index column is sorted the other way, we swap end and start
                        // NULLS_FIRST / NULLS_LAST is not a problem, as nulls never match anyway
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        for (int i = 0; first != null && i < first.getColumnCount(); i++) {
            Value v = first.getValue(i);
            if (v != null) {
                buff.appendOnlyFirst(" WHERE ");
                buff.appendExceptFirst(" AND ");
                Column col = table.getColumn(i);
                buff.append(col.getSQL());
                if (v == ValueNull.INSTANCE) {
                    buff.append(" IS NULL");
                } else {
                    buff.append(">=");
                    addParameter(buff, col);
                    params.add(v);
                }
            }
        }
        for (int i = 0; last != null && i < last.getColumnCount(); i++) {
            Value v = last.getValue(i);
            if (v != null) {
                buff.appendOnlyFirst(" WHERE ");
                buff.appendExceptFirst(" AND ");
                Column col = table.getColumn(i);
                buff.append(col.getSQL());
                if (v == ValueNull.INSTANCE) {
                    buff.append(" IS NULL");
                } else {
                    buff.append("<=");
                    addParameter(buff, col);
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        ArrayList<Value> params = New.arrayList();
        StatementBuilder buff = new StatementBuilder("DELETE FROM ");
        buff.append(targetTableName).append(" WHERE ");
        for (int i = 0; i < row.getColumnCount(); i++) {
            buff.appendExceptFirst("AND ");
            Column col = table.getColumn(i);
            buff.append(col.getSQL());
            Value v = row.getValue(i);
            if (isNull(v)) {
                buff.append(" IS NULL ");
            } else {
                buff.append('=');
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            }
        }
        buff.append(" WHERE ");
        buff.resetCount();
        for (int i = 0; i < oldRow.getColumnCount(); i++) {
            Column col = table.getColumn(i);
            buff.appendExceptFirst(" AND ");
            buff.append(col.getSQL());
            Value v = oldRow.getValue(i);
            if (isNull(v)) {
                buff.append(" IS NULL");
            } else {
                buff.append('=');
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            rowKeyColumn.setTable(this, -2);
            rowKeyColumn.setRowKeyColumn(true);
            rowKeyName = rowKeyColumn.getName();
            this.rowKeyColumn = rowKeyColumn;
        } else {
            this.rowKeyColumn = new Column(Column.ROWKEY, Value.STRING);
            this.rowKeyColumn.setTable(this, -2);
            this.rowKeyColumn.setRowKeyColumn(true);
            this.rowKeyName = Column.ROWKEY;
        }
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    }

    @Override
    public Column getRowKeyColumn() {
        if (rowKeyColumn == null) {
            rowKeyColumn = new Column(getRowKeyName(), true);
            rowKeyColumn.setTable(this, -2);
        }
        return rowKeyColumn;
    }
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    public Column getColumn(String columnName) {
        if (database.getSettings().rowKey && Column.ROWKEY.equals(columnName))
            return getRowKeyColumn();

        if (columnName.indexOf('.') == -1) {
            Column c = shortColumnNameMap.get(columnName);
            if (c != null)
                return c;

            columnName = getFullColumnName(null, columnName);
        }
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    public Column getColumn(String columnFamilyName, String columnName, boolean isInsert) {
        if (database.getSettings().rowKey && Column.ROWKEY.equals(columnName))
            return getRowKeyColumn();

        if (columnFamilyName == null) {
            Column c = shortColumnNameMap.get(columnName);
            if (c != null)
                return c;
        }

        columnName = getFullColumnName(columnFamilyName, columnName);
        if (!isStatic && isInsert) {
            if (doesColumnExist(columnName))
                return getColumn(columnName);
            else { //处理动态列
                Column[] oldColumns = getColumns();
                Column[] newColumns;
                if (oldColumns == null)
                    newColumns = new Column[1];
                else
                    newColumns = new Column[oldColumns.length + 1];
                System.arraycopy(oldColumns, 0, newColumns, 0, oldColumns.length);
                Column c = new Column(columnName);
                addShortColumnName(c);
                newColumns[oldColumns.length] = c;
                setColumnsNoCheck(newColumns);
                isColumnsModified = true;

                ArrayList<Column> list = columnFamilyMap.get(c.getColumnFamilyName());
                if (list == null) {
                    list = New.arrayList();
                    columnFamilyMap.put(c.getColumnFamilyName(), list);
                }
                list.add(c);
                return c;
            }
        } else {
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    public Index addIndex(Session session, String indexName, int indexId, IndexColumn[] cols, IndexType indexType,
            boolean create, String indexComment) {
        boolean isDelegateIndex = false;
        if (indexType.isPrimaryKey()) {
            for (IndexColumn c : cols) {
                Column column = c.column;
                if (column.isNullable()) {
                    throw DbException.get(ErrorCode.COLUMN_MUST_NOT_BE_NULLABLE_1, column.getName());
                }
                column.setPrimaryKey(true);
                column.setRowKeyColumn(true);
            }

            if (cols.length == 1) {
                isDelegateIndex = true;
                if (isStatic) {
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Related Classes of org.lealone.dbobject.table.Column

  • org.lealone.command.ddl.CreateTable
  • org.lealone.command.dml.Explain
  • org.lealone.command.dml.Insert
  • org.lealone.command.dml.Merge
  • org.lealone.command.dml.ScriptCommand
  • org.lealone.command.dml.Select
  • org.lealone.command.dml.SelectListColumnResolver
  • org.lealone.command.dml.SelectUnion
  • org.lealone.command.dml.Update
  • org.lealone.command.Parser
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