Package org.jooq.tools.jdbc

Source Code of org.jooq.tools.jdbc.MockResult

/**
* Copyright (c) 2009-2014, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* This work is dual-licensed
* - under the Apache Software License 2.0 (the "ASL")
* - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
* =============================================================================
* You may choose which license applies to you:
*
* - If you're using this work with Open Source databases, you may choose
*   either ASL or jOOQ License.
* - If you're using this work with at least one commercial database, you must
*   choose jOOQ License
*
* For more information, please visit http://www.jooq.org/licenses
*
* Apache Software License 2.0:
* -----------------------------------------------------------------------------
* 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.
*
* jOOQ License and Maintenance Agreement:
* -----------------------------------------------------------------------------
* Data Geekery grants the Customer the non-exclusive, timely limited and
* non-transferable license to install and use the Software under the terms of
* the jOOQ License and Maintenance Agreement.
*
* This library is distributed with a LIMITED WARRANTY. See the jOOQ License
* and Maintenance Agreement for more details: http://www.jooq.org/licensing
*/
package org.jooq.tools.jdbc;

import static org.jooq.impl.DSL.using;

import java.sql.Statement;

import org.jooq.AttachableInternal;
import org.jooq.Configuration;
import org.jooq.Record;
import org.jooq.Result;
import org.jooq.impl.DefaultConfiguration;

/**
* A mock result.
* <p>
* This type is used to wrap unified results of DDL and DML query executions.
* JDBC execution results can be summarised to two properties:
* <ul>
* <li> {@link Statement#getUpdateCount()}: The number of affected rows</li>
* <li> {@link Statement#getResultSet()}: The result set</li>
* </ul>
* <p>
* See {@link MockDataProvider#execute(MockExecuteContext)} for more details
*
* @author Lukas Eder
* @see MockDataProvider
*/
public class MockResult {

    /**
     * The number of affected rows for this execution result.
     * <p>
     * This number corresponds to the value of
     * {@link Statement#getUpdateCount()}. The following values are possible:
     * <ul>
     * <li>Positive numbers: the number of affected rows by a given query
     * execution</li>
     * <li>0: no rows were affected by a given query execution</li>
     * <li>-1: the row count is not applicable</li>
     * </ul>
     */
    public final int       rows;

    /**
     * The result data associated with this execution result.
     * <p>
     * This object describes the result data (including meta data). If the given
     * query execution did not provide any results, this may be
     * <code>null</code>. Note, that this can also be used to provide a result
     * for {@link Statement#getGeneratedKeys()}
     */
    public final Result<?> data;

    /**
     * Create a new <code>MockResult</code>.
     * <p>
     * This is a convenience constructor creating a <code>MockResult</code> with exactly one record.
     *
     * @param data The single record in this result.
     */
    public MockResult(Record data) {
        this(1, result(data));
    }

    /**
     * Create a new <code>MockResult</code>.
     *
     * @param rows The number of affected rows
     * @param data The result data
     */
    public MockResult(int rows, Result<?> data) {
        this.rows = rows;
        this.data = data;
    }

    private static final Result<?> result(Record data) {
        Configuration configuration = data instanceof AttachableInternal
            ? ((AttachableInternal) data).configuration()
            : new DefaultConfiguration();

        Result<Record> result = using(configuration).newResult(data.fields());
        result.add(data);

        return result;
    }

    @Override
    public String toString() {
        return (data != null) ? data.toString() : ("" + rows);
    }
}
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