DefaultJPQLQueryProblem.java

/*******************************************************************************
 * Copyright (c) 2006, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation
 *
 ******************************************************************************/
package org.eclipse.persistence.jpa.jpql;

import java.util.Arrays;
import org.eclipse.persistence.jpa.jpql.parser.Expression;

/**
 * The default implementation of {@link JPQLQueryProblem}.
 *
 * @version 2.4
 * @since 2.3
 * @author Pascal Filion
 */
@SuppressWarnings("nls")
final class DefaultJPQLQueryProblem implements JPQLQueryProblem {

    /**
     * The position where the problem ends, inclusively.
     */
    private int endIndex;

    /**
     * The {@link Expression} that is either not following the BNF grammar or that has semantic problems.
     */
    private Expression expression;

    /**
     * The list of arguments that can be used to format the localized description of the problem.
     */
    private String[] messageArguments;

    /**
     * The key used to retrieve the localized message describing the problem.
     */
    private String messageKey;

    /**
     * The position where the problem ends.
     */
    private int startIndex;

    /**
     * Creates a new <code>DefaultJPQLQueryProblem</code>.
     *
     * @param expression The {@link Expression} that is either not following the BNF grammar or that
     * has semantic problems
     * @param startIndex The position where the problem was encountered
     * @param endIndex The position where the problem ends, inclusively
     * @param messageKey The key used to retrieve the localized message describing the problem
     * @param messageArguments The list of arguments that can be used to format the localized
     * description of the problem
     */
    DefaultJPQLQueryProblem(Expression expression,
                            int startIndex,
                            int endIndex,
                            String messageKey,
                            String... messageArguments) {
        super();

        this.startIndex       = startIndex;
        this.endIndex         = endIndex;
        this.expression       = expression;
        this.messageKey       = messageKey;
        this.messageArguments = messageArguments;
    }

    /**
     * {@inheritDoc}
     */
    public int getEndPosition() {
        return endIndex;
    }

    /**
     * {@inheritDoc}
     */
    public Expression getExpression() {
        return expression;
    }

    /**
     * {@inheritDoc}
     */
    public String[] getMessageArguments() {
        return messageArguments;
    }

    /**
     * {@inheritDoc}
     */
    public String getMessageKey() {
        return messageKey;
    }

    /**
     * {@inheritDoc}
     */
    public int getStartPosition() {
        return startIndex;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("messageKey=");
        sb.append(messageKey);
        sb.append(", messageArguments=");
        sb.append(Arrays.toString(messageArguments));
        sb.append(", position=[");
        sb.append(startIndex);
        sb.append(", ");
        sb.append(endIndex);
        sb.append("], query=");
        sb.append(expression);
        return sb.toString();
    }
}