Examples of oracle.toplink.essentials.queryframework.ValueReadQuery

Package oracle.toplink.essentials.queryframework

Examples of oracle.toplink.essentials.queryframework.ValueReadQuery

oracle.toplink.essentials.queryframework.ValueReadQuery

Purpose: Concrete class to perform a read of a single data value.

Responsibilities: Used in conjunction with CursoredStream size and Platform getSequence. This can be used to read a single data value (i.e. one field). A single data value is returned, or null if no rows are returned. @author James Sutherland @since TOPLink/Java 1.2

     * This method returns the query to select the timestamp
     * from the server for MySQL.
     */
    public ValueReadQuery getTimestampQuery() {
        if (timestampQuery == null) {
            timestampQuery = new ValueReadQuery();
            timestampQuery.setSQLString("SELECT NOW()");
        }
        return timestampQuery;
    }

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        return true;
    }


    @Override
    public ValueReadQuery buildSelectQueryForIdentity() {
        return new ValueReadQuery("CALL IDENTITY()");
    }

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    return true;
  }


  @Override
  public ValueReadQuery buildSelectQueryForNativeSequence() {
    return new ValueReadQuery("CALL IDENTITY()");
  }

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