content: /*
   * Copyright (c) 2015, 2020, Oracle and/or its affiliates.
   *
   * This program is free software; you can redistribute it and/or modify it under
   * the terms of the GNU General Public License, version 2.0, as published by the
   * Free Software Foundation.
   *
   * This program is also distributed with certain software (including but not
   * limited to OpenSSL) that is licensed under separate terms, as designated in a
   * particular file or component or in included license documentation. The
   * authors of MySQL hereby grant you an additional permission to link the
   * program and your derivative works with the separately licensed software that
   * they have included with MySQL.
   *
   * Without limiting anything contained in the foregoing, this file, which is
   * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
   * version 1.0, a copy of which can be found at
   * http://oss.oracle.com/licenses/universal-foss-exception.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
   * for more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
   */
  
  package com.mysql.cj.xdevapi;
  
  import java.util.concurrent.CompletableFuture;
  
  import com.mysql.cj.MysqlxSession;
  import com.mysql.cj.protocol.x.XMessage;
  import com.mysql.cj.xdevapi.FilterParams.RowLock;
  import com.mysql.cj.xdevapi.FilterParams.RowLockOptions;
  
  /**
   * {@link FindStatement} implementation.
   */
  public class FindStatementImpl extends FilterableStatement<FindStatement, DocResult> implements FindStatement {
      /* package private */ FindStatementImpl(MysqlxSession mysqlxSession, String schema, String collection, String criteria) {
          super(new DocFilterParams(schema, collection));
          this.mysqlxSession = mysqlxSession;
          if (criteria != null && criteria.length() > 0) {
              this.filterParams.setCriteria(criteria);
          }
          if (!this.mysqlxSession.supportsPreparedStatements()) {
              this.preparedState = PreparedState.UNSUPPORTED;
          }
      }
  
      @Override
      protected DocResult executeStatement() {
          return this.mysqlxSession.query(getMessageBuilder().buildFind(this.filterParams), new StreamingDocResultBuilder(this.mysqlxSession));
      }
  
      @Override
      protected XMessage getPrepareStatementXMessage() {
          return getMessageBuilder().buildPrepareFind(this.preparedStatementId, this.filterParams);
      }
  
      @Override
      protected DocResult executePreparedStatement() {
          return this.mysqlxSession.query(getMessageBuilder().buildPrepareExecute(this.preparedStatementId, this.filterParams),
                  new StreamingDocResultBuilder(this.mysqlxSession));
      }
  
      public CompletableFuture<DocResult> executeAsync() {
          return this.mysqlxSession.queryAsync(getMessageBuilder().buildFind(this.filterParams), new DocResultBuilder(this.mysqlxSession));
      }
  
      @Override
      public FindStatement fields(String... projection) {
          resetPrepareState();
          this.filterParams.setFields(projection);
          return this;
      }
  
      public FindStatement fields(Expression docProjection) {
          resetPrepareState();
          ((DocFilterParams) this.filterParams).setFields(docProjection);
          return this;
      }
  
      @Override
      public FindStatement groupBy(String... groupBy) {
          resetPrepareState();
          this.filterParams.setGrouping(groupBy);
          return this;
      }
  
      public FindStatement having(String having) {
          resetPrepareState();
          this.filterParams.setGroupingCriteria(having);
          return this;
      }
  
      @Override
      public FindStatement lockShared() {
          return lockShared(LockContention.DEFAULT);
      }
  
      @Override
      public FindStatement lockShared(LockContention lockContention) {
          resetPrepareState();
          this.filterParams.setLock(RowLock.SHARED_LOCK);
          switch (lockContention) {
              case NOWAIT:
                  this.filterParams.setLockOption(RowLockOptions.NOWAIT);
                  break;
              case SKIP_LOCKED:
                  this.filterParams.setLockOption(RowLockOptions.SKIP_LOCKED);
                  break;
              case DEFAULT:
          }
          return this;
      }
  
      @Override
      public FindStatement lockExclusive() {
          return lockExclusive(LockContention.DEFAULT);
      }
  
      @Override
      public FindStatement lockExclusive(LockContention lockContention) {
          resetPrepareState();
          this.filterParams.setLock(RowLock.EXCLUSIVE_LOCK);
          switch (lockContention) {
              case NOWAIT:
                  this.filterParams.setLockOption(RowLockOptions.NOWAIT);
                  break;
              case SKIP_LOCKED:
                  this.filterParams.setLockOption(RowLockOptions.SKIP_LOCKED);
                  break;
              case DEFAULT:
          }
          return this;
      }
  
      /**
       * @deprecated Deprecated in Connector/J 8.0.17. Please use filter criteria in the operation starting method.
       */
      @Deprecated
      @Override
      public FindStatement where(String searchCondition) {
          return super.where(searchCondition);
      }
  }
  