Examples of com.j256.ormlite.stmt.Where

com.j256.ormlite.support.DatabaseConnection

3schools.com/Sql/" >good tutorial of SQL commands.

To create a query which looks up an account by name and password you would do the following:

 QueryBuilder<Account, String> qb = accountDao.queryBuilder(); Where where = qb.where(); // the name field must be equal to "foo" where.eq(Account.NAME_FIELD_NAME, "foo"); // and where.and(); // the password field must be equal to "_secret" where.eq(Account.PASSWORD_FIELD_NAME, "_secret"); PreparedQuery<Account, String> preparedQuery = qb.prepareQuery();

In this example, the SQL query that will be generated will be approximately:

 SELECT * FROM account WHERE (name = 'foo' AND passwd = '_secret')

If you'd rather chain the methods onto one line (like StringBuilder), this can also be written as:

 queryBuilder.where().eq(Account.NAME_FIELD_NAME, "foo").and().eq(Account.PASSWORD_FIELD_NAME, "_secret");

If you'd rather use parens and the like then you can call:

 Where where = queryBuilder.where(); where.and(where.eq(Account.NAME_FIELD_NAME, "foo"), where.eq(Account.PASSWORD_FIELD_NAME, "_secret"));

All three of the above call formats produce the same SQL. For complex queries that mix ANDs and ORs, the last format will be necessary to get the grouping correct. For example, here's a complex query:

 Where where = queryBuilder.where(); where.or(where.and(where.eq(Account.NAME_FIELD_NAME, "foo"), where.eq(Account.PASSWORD_FIELD_NAME, "_secret")), where.and(where.eq(Account.NAME_FIELD_NAME, "bar"), where.eq(Account.PASSWORD_FIELD_NAME, "qwerty")));

This produces the following approximate SQL:

 SELECT * FROM account WHERE ((name = 'foo' AND passwd = '_secret') OR (name = 'bar' AND passwd = 'qwerty'))

@author graywatson

  /**
   * Satisfies the {@link SQLiteOpenHelper#onUpgrade(SQLiteDatabase, int, int)} interface method.
   */
  @Override
  public final void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    ConnectionSource cs = getConnectionSource();
    /*
     * The method is called by Android database helper's get-database calls when Android detects that we need to
     * create or update the database. So we have to use the database argument and save a connection to it on the
     * AndroidConnectionSource, otherwise it will go recursive if the subclass calls getConnectionSource().
     */
    DatabaseConnection conn = cs.getSpecialConnection();
    boolean clearSpecial = false;
    if (conn == null) {
      conn = new AndroidDatabaseConnection(db, true);
      try {
        cs.saveSpecialConnection(conn);
        clearSpecial = true;
      } catch (SQLException e) {
        throw new IllegalStateException("Could not save special connection", e);
      }
    }
    try {
      onUpgrade(db, cs, oldVersion, newVersion);
    } finally {
      if (clearSpecial) {
        cs.clearSpecialConnection(conn);
      }
    }
  }

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     */
    return getReadWriteConnection();
  }


  public DatabaseConnection getReadWriteConnection() throws SQLException {
    DatabaseConnection conn = getSavedConnection();
    if (conn != null) {
      return conn;
    }
    if (connection == null) {
      connection = new AndroidDatabaseConnection(helper.getWritableDatabase(), true);

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    /*
     * The method is called by Android database helper's get-database calls when Android detects that we need to
     * create or update the database. So we have to use the database argument and save a connection to it on the
     * AndroidConnectionSource, otherwise it will go recursive if the subclass calls getConnectionSource().
     */
    DatabaseConnection conn = cs.getSpecialConnection();
    boolean clearSpecial = false;
    if (conn == null) {
      conn = new AndroidDatabaseConnection(db, true);
      try {
        cs.saveSpecialConnection(conn);

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    /*
     * The method is called by Android database helper's get-database calls when Android detects that we need to
     * create or update the database. So we have to use the database argument and save a connection to it on the
     * AndroidConnectionSource, otherwise it will go recursive if the subclass calls getConnectionSource().
     */
    DatabaseConnection conn = cs.getSpecialConnection();
    boolean clearSpecial = false;
    if (conn == null) {
      conn = new AndroidDatabaseConnection(db, true);
      try {
        cs.saveSpecialConnection(conn);

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        foreignIdField.assignField(foreignObject, val);
      } else {
        levelCounters.autoRefreshlevel++;
        try {
          // do we need to auto-refresh the field?
          DatabaseConnection databaseConnection = connectionSource.getReadOnlyConnection();
          try {
            foreignObject = mappedQueryForId.execute(databaseConnection, val);
          } finally {
            connectionSource.releaseConnection(databaseConnection);
          }

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   * Same as {@link #callInTransaction(Callable)} except as a static method with a connection source.
   */
  public static <T> T callInTransaction(final ConnectionSource connectionSource, final Callable<T> callable)
      throws SQLException {


    DatabaseConnection connection = connectionSource.getReadWriteConnection();
    try {
      boolean saved = connectionSource.saveSpecialConnection(connection);
      return callInTransaction(connection, saved, connectionSource.getDatabaseType(), callable);
    } finally {
      // we should clear aggressively

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  /**
   * Return a list of all of the data in the table that matches the {@link PreparedStmt}. Should be used carefully if
   * the table is large. Consider using the {@link Dao#iterator} if this is the case.
   */
  public RawResults queryForAllRawOld(ConnectionSource connectionSource, String query) throws SQLException {
    DatabaseConnection connection = connectionSource.getReadOnlyConnection();
    CompiledStatement compiledStatement = null;
    try {
      compiledStatement = connection.compileStatement(query, StatementType.SELECT, noFieldTypes);
      String[] columnNames = extractColumnNames(compiledStatement);
      RawResultsWrapper rawResults =
          new RawResultsWrapper(connectionSource, connection, query, compiledStatement, columnNames, this);
      compiledStatement = null;
      connection = null;

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  /**
   * Create and return an {@link SelectIterator} for the class using a prepared statement.
   */
  public SelectIterator<T, ID> buildIterator(BaseDaoImpl<T, ID> classDao, ConnectionSource connectionSource,
      PreparedStmt<T> preparedStmt) throws SQLException {
    DatabaseConnection connection = connectionSource.getReadOnlyConnection();
    CompiledStatement compiledStatement = null;
    try {
      compiledStatement = preparedStmt.compile(connection);
      SelectIterator<T, ID> iterator =
          new SelectIterator<T, ID>(tableInfo.getDataClass(), classDao, preparedStmt, connectionSource,

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  /**
   * Return on old RawResults object associated with an internal iterator that matches the query argument.
   */
  public RawResults buildOldIterator(ConnectionSource connectionSource, String query) throws SQLException {
    logger.debug("executing raw results iterator for: {}", query);
    DatabaseConnection connection = connectionSource.getReadOnlyConnection();
    CompiledStatement compiledStatement = null;
    try {
      compiledStatement = connection.compileStatement(query, StatementType.SELECT, noFieldTypes);
      String[] columnNames = extractColumnNames(compiledStatement);
      RawResultsWrapper rawResults =
          new RawResultsWrapper(connectionSource, connection, query, compiledStatement, columnNames, this);
      compiledStatement = null;
      connection = null;

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    logger.debug("executing raw query for: {}", query);
    if (arguments.length > 0) {
      // need to do the (Object) cast to force args to be a single object
      logger.trace("query arguments: {}", (Object) arguments);
    }
    DatabaseConnection connection = connectionSource.getReadOnlyConnection();
    CompiledStatement compiledStatement = null;
    try {
      compiledStatement = connection.compileStatement(query, StatementType.SELECT, noFieldTypes);
      assignStatementArguments(compiledStatement, arguments);
      String[] columnNames = extractColumnNames(compiledStatement);
      GenericRawResults<String[]> rawResults =
          new RawResultsImpl<String[]>(connectionSource, connection, query, String[].class,
              compiledStatement, columnNames, this);

View Full Code Here

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com.j256.ormlite.android.apptools.OrmLiteSqliteOpenHelper

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com.j256.ormlite.dao.RuntimeExceptionDaoTest

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