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/*
 * Copyright 2013 Stormpath, 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 com.stormpath.sdk.group;

import com.stormpath.sdk.query.Criteria;

/**
 * An {@link Group}-specific {@link Criteria} class, enabling a Group-specific
 * fluentquery DSL.  GroupCriteria instances can be
 * constructed by using the {@link Groups} utility class, for example:
 *  * Groups.where(Groups.name().containsIgnoreCase("admin"))
 *     .and(Groups.status().eq(GroupStatus.ENABLED))
 *     .orderByName()
 *     .withAccounts(10, 10)
 *     .limitTo(10));
 * 
 * Sort Order
 * 
 * All of the {@code orderBy*} methods append an {@code orderBy} clause to the query, ensuring the query results reflect
 * a particular sort order.
 * 

 * The default sort order is always {@code ascending}, but can be changed to {@code descending} by calling the
 * {@link #descending()} method immediately after the {@code orderBy} method call.  For example:
 * 
 * ...criteria.orderByName().descending()...
 * 
 * Multiple Order Statements
 * You may specify multiple {@code orderBy} clauses and the query results will ordered, reflecting {@code orderBy}
 * statements in the order they are declared.  For example, to order the results first by name (ascending)
 * and then further by status (descending), you would chain {@code orderBy} statements:
 *  * ...criteria
 *     .orderByName()
 *     .orderByStatus().descending()
 *     ...
 * 
 *
 * @since 0.8
 */
public interface GroupCriteria extends Criteria, GroupOptions {

    /**
     * Ensures that the query results are ordered by group {@link Group#getName() name}.
     * 
     * Please see the {@link GroupCriteria class-level documentation} for controlling sort order (ascending or
     * descending) and chaining multiple {@code orderBy} clauses.
     *
     * @return this instance for method chaining
     */
    GroupCriteria orderByName();

    /**
     * Ensures that the query results are ordered by group {@link Group#getDescription() description}.
     * 

     * Please see the {@link GroupCriteria class-level documentation} for controlling sort order (ascending or
     * descending) and chaining multiple {@code orderBy} clauses.
     *
     * @return this instance for method chaining
     */
    GroupCriteria orderByDescription();

    /**
     * Ensures that the query results are ordered by group {@link Group#getStatus() status}.
     * 
     * Please see the {@link GroupCriteria class-level documentation} for controlling sort order (ascending or
     * descending) and chaining multiple {@code orderBy} clauses.
     *
     * @return this instance for method chaining
     */
    GroupCriteria orderByStatus();

}