Android Open Source - PatternAndroid Rest Provider

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License

The source code is released under:
MIT License
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Java Source Code

package com.twitterclone.model.provider;
//ww w  . ja v  a 2  s  . co m
import com.twitterclone.model.provider.Contract.Tweets;

import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.Context;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;
import android.net.Uri;

public class RestProvider extends ContentProvider {
  final String TAG = getClass().getSimpleName();
  
  private static final String TABLE_TWEETS = "tweets";
  
  private static final String DB_NAME = TABLE_TWEETS + ".db";
  private static final int DB_VERSION = 1;
  
  private static final UriMatcher sUriMatcher;
  
  private static final int PATH_ROOT = 0;
  private static final int PATH_TWEETS = 1;
  
  static {
    sUriMatcher = new UriMatcher(PATH_ROOT);
    sUriMatcher.addURI(Contract.AUTHORITY, Contract.Tweets.CONTENT_PATH, PATH_TWEETS); 
  }
  
  private DatabaseHeloper mDatabaseHelper;
  
  class DatabaseHeloper extends SQLiteOpenHelper {

    public DatabaseHeloper(Context context, String name, CursorFactory factory, int version) {
      super(context, name, factory, version);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
      String sql = 
        "create table " + TABLE_TWEETS + " (" + 
          Tweets._ID + " integer primary key autoincrement, " +
          Tweets.USER_NAME + " text, " +
          Tweets.BODY + " text, " +
          Tweets.DATE + " text" +
        ")";
      db.execSQL(sql);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    }
    
  }

  @Override
  public boolean onCreate() {
    mDatabaseHelper = new DatabaseHeloper(getContext(), DB_NAME, null, DB_VERSION);
    return true;
  }
  

  @Override
  public Cursor query(Uri uri, String[] projection, String selection,
      String[] selectionArgs, String sortOrder) {
    switch (sUriMatcher.match(uri)) {
    case PATH_TWEETS: {
      Cursor cursor = mDatabaseHelper.getReadableDatabase().query(TABLE_TWEETS, projection, selection, selectionArgs, null, null, sortOrder);
      cursor.setNotificationUri(getContext().getContentResolver(), Contract.Tweets.CONTENT_URI);
      return cursor;
    }
    default:
      return null;
    }
  }

  @Override
  public String getType(Uri uri) {
    switch (sUriMatcher.match(uri)) {
    case PATH_TWEETS:
      return Contract.Tweets.CONTENT_TYPE;
    default:
      return null;
    }
  }

  @Override
  public Uri insert(Uri uri, ContentValues values) {
    switch (sUriMatcher.match(uri)) {
    case PATH_TWEETS: {
      mDatabaseHelper.getWritableDatabase().insert(TABLE_TWEETS, null, values);
      getContext().getContentResolver().notifyChange(Contract.Tweets.CONTENT_URI, null);
    }
    default:
      return null;
    }
  }

  @Override
  public int delete(Uri uri, String selection, String[] selectionArgs) {
    switch (sUriMatcher.match(uri)) {
    case PATH_TWEETS:
      return mDatabaseHelper.getWritableDatabase().delete(TABLE_TWEETS, selection, selectionArgs);
    default:
      return 0;
    }
  }

  @Override
  public int update(Uri uri, ContentValues values, String selection,
      String[] selectionArgs) {
    switch (sUriMatcher.match(uri)) {
    case PATH_TWEETS:
      return mDatabaseHelper.getWritableDatabase().update(TABLE_TWEETS, values, selection, selectionArgs);
    default:
      return 0;
    }
  }

}
Java Source Code List
