Constructor Detail

• ParamInfo

  public ParamInfo​(java.lang.String userDefinedType,
                   java.lang.String systemType,
                   FieldDescriptor desc,
                   java.lang.ClassLoader classLoader)
            throws QueryException

  Creates a new ParamInfo. Which checks for incompatibilities between types.

  Parameters:

  userDefinedType - The user defined type, empty string if undefined.

  systemType - The system generated type

  desc - JDO field descriptor.

  classLoader - ClassLoader instance, null if not specified.

  Throws:

  QueryException - if the user defined type cannot be converted to the systemType or if the type is not found.

Method Detail

• check

  public void check​(java.lang.String userDefinedType,
                    java.lang.String systemType)
             throws QueryException

  Checks whether the userDefinedType and systemType match those previousle specified in the constructor.

  Parameters:

  userDefinedType - The user defined type, empty string if undefined.

  systemType - The system generated type

  Throws:

  QueryException - if the user defined type is not the same as the one prevuiously specified in the constructor, or if the systemType is not convertable to the original systemType.

• isUserDefined

  public boolean isUserDefined()

  Specifies whether this parameter was specified in the OQL with a User defined type, like $(int)1.

  Returns:

  True if this parameter whas a user defined type otherwise false

• getTheClass

  public java.lang.Class getTheClass()

  Accessor method for _class.

  Returns:

  private member _class

• getFieldType

  public java.lang.Class getFieldType()

  Returns the Java field type.

  Returns:

  Java field type.

• getSQLType

  public java.lang.Class getSQLType()

  Returns the SQL type.

  Returns:

  SQL type.

• getConvertor

  public TypeConvertor getConvertor()

  Returns:

  Convertor that converts from the parameter type to SQL type of the parameter, if the latter is defined and not equal to the parameter class, otherwise returns null.