/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.phoenix.parse;

import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.apache.hadoop.hbase.util.Pair;

public class UpsertStatement extends DMLStatement implements RowReturningDMLStatement {

  public enum OnDuplicateKeyType {
    NONE,
    IGNORE,
    UPDATE,
    UPDATE_ONLY
  }

  private final List<ColumnName> columns;
  private final List<List<ParseNode>> values;
  private final SelectStatement select;
  private final HintNode hint;
  private final List<Pair<ColumnName, ParseNode>> onDupKeyPairs;
  private final OnDuplicateKeyType onDupKeyType;
  private final boolean returningRow;

  public UpsertStatement(NamedTableNode table, HintNode hint, List<ColumnName> columns,
    List<List<ParseNode>> values, SelectStatement select, int bindCount,
    Map<String, UDFParseNode> udfParseNodes, List<Pair<ColumnName, ParseNode>> onDupKeyPairs,
    OnDuplicateKeyType onDupKeyType, boolean returningRow) {
    super(table, bindCount, udfParseNodes);
    this.columns = columns == null ? Collections.emptyList() : columns;
    this.values = values;
    this.select = select;
    this.hint = hint == null ? HintNode.EMPTY_HINT_NODE : hint;
    this.onDupKeyPairs = onDupKeyPairs;
    this.onDupKeyType = onDupKeyType;
    this.returningRow = returningRow;
  }

  public List<ColumnName> getColumns() {
    return columns;
  }

  public List<List<ParseNode>> getValues() {
    return values;
  }

  public SelectStatement getSelect() {
    return select;
  }

  public HintNode getHint() {
    return hint;
  }

  public List<Pair<ColumnName, ParseNode>> getOnDupKeyPairs() {
    return onDupKeyPairs;
  }

  public OnDuplicateKeyType getOnDupKeyType() {
    return onDupKeyType;
  }

  public boolean isReturningRow() {
    return returningRow;
  }
}
