com.mysql.cj.xdevapi.FindStatementImpl Maven / Gradle / Ivy

/*
  Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.

  The MySQL Connector/J is licensed under the terms of the GPLv2
  , like most MySQL Connectors.
  There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
  this software, see the FOSS License Exception
  .

  This program is free software; you can redistribute it and/or modify it under the terms
  of the GNU General Public License as published by the Free Software Foundation; version 2
  of the License.

  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 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.api.xdevapi.DocResult;
import com.mysql.cj.api.xdevapi.Expression;
import com.mysql.cj.api.xdevapi.FindStatement;
import com.mysql.cj.x.core.MysqlxSession;
import com.mysql.cj.x.protobuf.MysqlxCrud.Find.RowLock;

public class FindStatementImpl extends FilterableStatement implements FindStatement {
    private MysqlxSession mysqlxSession;
    private DocFindParams findParams;

    /* package private */ FindStatementImpl(MysqlxSession mysqlxSession, String schema, String collection, String criteria) {
        super(new DocFindParams(schema, collection));
        this.findParams = (DocFindParams) this.filterParams;
        this.mysqlxSession = mysqlxSession;
        if (criteria != null && criteria.length() > 0) {
            this.findParams.setCriteria(criteria);
        }
    }

    public DocResultImpl execute() {
        return this.mysqlxSession.findDocs(this.findParams);
    }

    public CompletableFuture executeAsync() {
        return this.mysqlxSession.asyncFindDocs(this.findParams);
    }

    public  CompletableFuture executeAsync(R id, Reducer reducer) {
        return this.mysqlxSession.asyncFindDocsReduce(this.findParams, id, reducer);
    }

    @Override
    public FindStatement fields(String... projection) {
        this.findParams.setFields(projection);
        return this;
    }

    public FindStatement fields(Expression docProjection) {
        this.findParams.setFields(docProjection);
        return this;
    }

    @Override
    public FindStatement groupBy(String... groupBy) {
        this.findParams.setGrouping(groupBy);
        return this;
    }

    public FindStatement having(String having) {
        this.findParams.setGroupingCriteria(having);
        return this;
    }

    @Override
    public FindStatement lockShared() {
        this.findParams.setLock(RowLock.SHARED_LOCK);
        return this;
    }

    @Override
    public FindStatement lockExclusive() {
        this.findParams.setLock(RowLock.EXCLUSIVE_LOCK);
        return this;
    }
}