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/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * 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 studio.raptor.sqlparser.ast.statement;

import java.util.ArrayList;
import java.util.List;
import studio.raptor.sqlparser.ast.SQLExpr;
import studio.raptor.sqlparser.ast.SQLName;
import studio.raptor.sqlparser.ast.SQLObjectImpl;
import studio.raptor.sqlparser.ast.statement.SQLInsertStatement.ValuesClause;

public abstract class SQLInsertInto extends SQLObjectImpl {

  protected final List columns = new ArrayList();
  protected SQLExprTableSource tableSource;
  protected SQLSelect query;

  protected List valuesList = new ArrayList();

  public SQLInsertInto() {

  }

  public String getAlias() {
    return tableSource.getAlias();
  }

  public void setAlias(String alias) {
    this.tableSource.setAlias(alias);
  }

  public SQLExprTableSource getTableSource() {
    return tableSource;
  }

  public void setTableSource(SQLName tableName) {
    this.setTableSource(new SQLExprTableSource(tableName));
  }

  public void setTableSource(SQLExprTableSource tableSource) {
    if (tableSource != null) {
      tableSource.setParent(this);
    }
    this.tableSource = tableSource;
  }

  public SQLName getTableName() {
    return (SQLName) tableSource.getExpr();
  }

  public void setTableName(SQLName tableName) {
    this.setTableSource(new SQLExprTableSource(tableName));
  }

  public SQLSelect getQuery() {
    return query;
  }

  public void setQuery(SQLSelect query) {
    this.query = query;
  }

  public List getColumns() {
    return columns;
  }

  public void addColumn(SQLExpr column) {
    if (column != null) {
      column.setParent(this);
    }
    this.columns.add(column);
  }

  public ValuesClause getValues() {
    if (valuesList.size() == 0) {
      return null;
    }
    return valuesList.get(0);
  }

  public void setValues(ValuesClause values) {
    if (valuesList.size() == 0) {
      valuesList.add(values);
    } else {
      valuesList.set(0, values);
    }
  }

  public List getValuesList() {
    return valuesList;
  }

  public void setValuesList(List valuesList) {
    this.valuesList = valuesList;
  }
}