ca.travelagency.persistence.query.OrderBy.java Source code

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Here is the source code for ca.travelagency.persistence.query.OrderBy.java

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/**
 *    Copyright (C) 2010 - 2014 VREM Software Development <VREMSoftwareDevelopment@gmail.com>
 *
 *    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.
 */
package ca.travelagency.persistence.query;

import java.io.Serializable;

import org.apache.commons.lang3.Validate;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;

public class OrderBy implements Serializable {
    private static final long serialVersionUID = 1L;

    private String property;
    private boolean ascending;

    public static OrderBy make(String property, boolean ascending) {
        Validate.notBlank(property);
        OrderBy result = new OrderBy();
        result.property = property;
        result.ascending = ascending;
        return result;
    }

    public static OrderBy make(String property) {
        return make(property, true);
    }

    private OrderBy() {
    }

    public String getProperty() {
        return property;
    }

    public boolean isAscending() {
        return ascending;
    }

    String toStringAsSql() {
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append(getProperty());
        stringBuilder.append(" ");
        stringBuilder.append(isAscending() ? "ASC" : "DESC");
        return stringBuilder.toString();
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(getProperty()).append(isAscending()).toHashCode();
    }

    @Override
    public boolean equals(Object object) {
        if (this == object) {
            return true;
        }
        if (!(object instanceof OrderBy)) {
            return false;
        }
        OrderBy other = (OrderBy) object;
        return new EqualsBuilder().append(getProperty(), other.getProperty())
                .append(isAscending(), other.isAscending()).isEquals();
    }

    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this);
    }
}