ei.ne.ke.cassandra.cql3.template.Ordering.java Source code

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Here is the source code for ei.ne.ke.cassandra.cql3.template.Ordering.java

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/*
 * Copyright 2013 EK3 Technologies, Inc.
 *
 * 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 ei.ne.ke.cassandra.cql3.template;

import org.apache.commons.lang.builder.HashCodeBuilder;
import org.springframework.util.ObjectUtils;

import com.google.common.base.Preconditions;

/**
 *
 */
public class Ordering {

    private final Identifier ordering;
    private final Identifier direction;

    /**
     *
     *
     * @param ordering
     * @param direction
     */
    public Ordering(Identifier ordering, Identifier direction) {
        this.ordering = Preconditions.checkNotNull(ordering);
        this.direction = direction;
    }

    /**
     *
     *
     * @param ordering
     * @param direction
     */
    public Ordering(Identifier ordering) {
        this.ordering = Preconditions.checkNotNull(ordering);
        this.direction = null;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append(ordering);
        if (direction != null) {
            sb.append(" ");
            sb.append(direction);
        }
        return sb.toString();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean equals(Object rhs) {
        if (this == rhs) {
            return true;
        } else if (!(rhs instanceof Ordering)) {
            return false;
        } else {
            Ordering that = (Ordering) rhs;
            return ObjectUtils.nullSafeEquals(this.ordering, that.ordering)
                    && ObjectUtils.nullSafeEquals(this.direction, that.direction);
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public int hashCode() {
        return HashCodeBuilder.reflectionHashCode(this);
    }

    /**
     * @return the ordering
     */
    public Identifier getOrdering() {
        return ordering;
    }

    /**
     * @return the direction
     */
    public Identifier getDirection() {
        return direction;
    }

}