com.jsonstore.api.JSONStoreQueryParts.java Source code

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Here is the source code for com.jsonstore.api.JSONStoreQueryParts.java

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/*
 *     Copyright 2016 IBM Corp.
 *     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.jsonstore.api;

import com.jsonstore.exceptions.JSONStoreFindException;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.List;

/**
 * Represents a group of query parts that are joined with an OR statement.
 */
public class JSONStoreQueryParts {
    private List<JSONStoreQueryPart> parts;

    public JSONStoreQueryParts() {
        parts = new ArrayList<JSONStoreQueryPart>();
    }

    /**
     * @exclude
     */
    public JSONStoreQueryParts(JSONArray query) throws JSONStoreFindException {
        if (query == null) {
            parts = new ArrayList<JSONStoreQueryPart>();
        } else {
            parts = new ArrayList<JSONStoreQueryPart>(query.length());
            for (int i = 0; i < query.length(); i++) {
                JSONObject queryPart = null;
                try {
                    queryPart = query.getJSONObject(i);
                } catch (JSONException e) {
                    throw new JSONStoreFindException("Value in query at index " + i + " is not a JSON Object", e);
                }

                parts.add(new JSONStoreQueryPart(queryPart));
            }

        }
    }

    /**
     * Add a JSONStoreQueryPart to the group of parts.
     * @param part
     *            A query part that should be included in the query. All query parts are
     *            ORed together. For example, when adding query part A and query part B to
     *            the query content, the final query will be A OR B.
     */
    public void addQueryPart(JSONStoreQueryPart part) {
        if (part != null) {
            parts.add(part);
        }
    }

    /**
     * Retrieve the current list of query parts in this query part group.
     * @return A list of all query parts in the query content.
     */
    public List<JSONStoreQueryPart> getAllQueryParts() {
        return parts;
    }
}