69 lines
2.0 KiB
Java
69 lines
2.0 KiB
Java
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package de.gultsch.chat.persistance;
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import java.util.ArrayList;
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import java.util.List;
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import de.gultsch.chat.entities.Conversation;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.util.Log;
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public class DatabaseBackend extends SQLiteOpenHelper {
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private static DatabaseBackend instance = null;
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private static final String DATABASE_NAME = "history";
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private static final int DATABASE_VERSION = 1;
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public DatabaseBackend(Context context) {
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super(context, DATABASE_NAME, null, DATABASE_VERSION);
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}
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@Override
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public void onCreate(SQLiteDatabase db) {
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db.execSQL("create table conversations (uuid TEXT, name TEXT, profilePhotoUri TEXT, accountUuid TEXT, contactJid TEXT)");
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int arg1, int arg2) {
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// TODO Auto-generated method stub
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}
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public static synchronized DatabaseBackend getInstance(Context context) {
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if (instance == null) {
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instance = new DatabaseBackend(context.getApplicationContext());
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}
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return instance;
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}
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public void addConversation(Conversation conversation) {
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SQLiteDatabase db = this.getWritableDatabase();
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db.insert("conversations", null, conversation.getContentValues());
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}
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public int getConversationCount() {
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SQLiteDatabase db = this.getReadableDatabase();
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Cursor cursor = db.rawQuery("select count(uuid) as count from conversations",null);
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cursor.moveToFirst();
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return cursor.getInt(0);
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}
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public List<Conversation> getConversations(int status) {
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List<Conversation> list = new ArrayList<Conversation>();
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SQLiteDatabase db = this.getReadableDatabase();
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String[] selectionArgs = {""+status};
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Cursor cursor = db.rawQuery("select * from conversations where status = ?", selectionArgs);
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Log.d("gultsch","getConversations has found "+cursor.getCount()+" rows");
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while(cursor.moveToNext()) {
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Log.d("gultsch","converting row #"+cursor.getPosition());
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list.add(Conversation.fromCursor(cursor));
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}
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return list;
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}
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}
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