Java tutorial
/* * 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; import android.content.Context; import android.test.InstrumentationTestCase; import com.jsonstore.api.JSONStore; import com.jsonstore.api.JSONStoreCollection; import com.jsonstore.api.JSONStoreQueryPart; import com.jsonstore.api.JSONStoreQueryParts; import com.jsonstore.database.DatabaseConstants; import com.jsonstore.database.SearchFieldType; import com.jsonstore.exceptions.JSONStoreException; import org.json.JSONException; import org.json.JSONObject; import java.util.LinkedList; import java.util.List; public class CollectionRemoveDocumentTest extends InstrumentationTestCase { public CollectionRemoveDocumentTest() { // TODO Auto-generated constructor stub } /** * @return The {@link Context} of the test project. */ private Context getTestContext() { try { return getInstrumentation().getContext(); } catch (final Exception exception) { exception.printStackTrace(); return null; } } public void testRemoveDocumentSimple() throws JSONStoreException, JSONException { JSONStore store = JSONStore.getInstance(getTestContext()); store.destroy(); JSONStoreCollection simpleCol = new JSONStoreCollection("simple"); simpleCol.setSearchField("fn", SearchFieldType.STRING); simpleCol.setSearchField("age", SearchFieldType.INTEGER); simpleCol.setAdditionalSearchField("state", SearchFieldType.STRING); //Open collection. List<JSONStoreCollection> collections = new LinkedList<JSONStoreCollection>(); collections.add(simpleCol); store.openCollections(collections); //Add 7 documents simpleCol.addData(new JSONObject("{age: 50, fn:'Mike'}")); simpleCol.addData(new JSONObject("{age: 50, fn:'Nana'}")); simpleCol.addData(new JSONObject("{age: 51, fn:'Carlos'}")); JSONStoreQueryParts qContent = new JSONStoreQueryParts(); JSONStoreQueryPart qPart = new JSONStoreQueryPart(); qPart.addEqual("fn", "Carlos"); qContent.addQueryPart(qPart); List<JSONObject> carlosObj = simpleCol.findDocuments(qContent); for (JSONObject carlos : carlosObj) { simpleCol.removeDocumentById(carlos.getInt(DatabaseConstants.FIELD_ID)); } int countCarlos = simpleCol.countDocuments(qContent); int countAll = simpleCol.countAllDocuments(); assertEquals("Count all should have returned 0 when looking again for Carlos docs", 0, countCarlos); assertEquals("Count all should have returned 2 when looking again for all docs", 2, countAll); store.destroy(); } }