AlterSequence.java

/*
 * Copyright 2014-2015 the original author or authors
 *
 * Licensed under the Apache License, Version 2.0 (the “License”);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an “AS IS” BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.wplatform.ddal.command.dml;

import com.wplatform.ddal.command.CommandInterface;
import com.wplatform.ddal.command.ddl.SchemaCommand;
import com.wplatform.ddal.command.expression.Expression;
import com.wplatform.ddal.dbobject.schema.Schema;
import com.wplatform.ddal.dbobject.schema.Sequence;
import com.wplatform.ddal.dbobject.table.Column;
import com.wplatform.ddal.dbobject.table.Table;
import com.wplatform.ddal.engine.Session;
import com.wplatform.ddal.message.DbException;
import com.wplatform.ddal.message.ErrorCode;

/**
 * This class represents the statement
 * ALTER SEQUENCE
 */
public class AlterSequence extends SchemaCommand {

    private Table table;
    private Sequence sequence;
    private Expression start;
    private Expression increment;
    private Boolean cycle;
    private Expression minValue;
    private Expression maxValue;
    private Expression cacheSize;

    public AlterSequence(Session session, Schema schema) {
        super(session, schema);
    }

    public void setSequence(Sequence sequence) {
        this.sequence = sequence;
    }

    @Override
    public boolean isTransactional() {
        return true;
    }

    public void setColumn(Column column) {
        table = column.getTable();
        sequence = column.getSequence();
        if (sequence == null) {
            throw DbException.get(ErrorCode.SEQUENCE_NOT_FOUND_1, column.getSQL());
        }
    }

    public void setStartWith(Expression start) {
        this.start = start;
    }

    public void setIncrement(Expression increment) {
        this.increment = increment;
    }

    public void setCycle(Boolean cycle) {
        this.cycle = cycle;
    }

    public void setMinValue(Expression minValue) {
        this.minValue = minValue;
    }

    public void setMaxValue(Expression maxValue) {
        this.maxValue = maxValue;
    }

    public void setCacheSize(Expression cacheSize) {
        this.cacheSize = cacheSize;
    }

    @Override
    public int update() {
        throw DbException.getUnsupportedException("TODO");
    }

    @Override
    public int getType() {
        return CommandInterface.ALTER_SEQUENCE;
    }

    public Table getTable() {
        return table;
    }

    public Sequence getSequence() {
        return sequence;
    }

    public Expression getStart() {
        return start;
    }

    public Expression getIncrement() {
        return increment;
    }

    public Boolean getCycle() {
        return cycle;
    }

    public Expression getMinValue() {
        return minValue;
    }

    public Expression getMaxValue() {
        return maxValue;
    }

    public Expression getCacheSize() {
        return cacheSize;
    }

}