Package name.matthewgreet.strutscommons.annotation

Annotation Type IntegerCSVConversion

@Documented @Inherited @Target(FIELD) @Retention(RUNTIME) public @interface IntegerCSVConversion

Defines a form field (whether on a Struts Action or model of ModelDriven Struts Action) should be parsed from comma separated values to some collection type of Integer and error message to display if this fails. Individual empty string values are converted to null. An entire empty string value is converter to an empty collection. Different separators can be set instead of comma. Also, defines a view helper field receives a formatted integer collection value.

There are two modes of behaviour for conversion, depending on the type of form field.

Validation Annotation Usage
Form field type Mode Description
Integer or int array or collection Auto conversion Converts directly from single request parameter of same name and creates and sets array or collection
String Pair conversion Converts single string field value to Integer or int array or collection field named by parsedFieldName

By default, messages are written as Action error messages for form processing Actions and logged as warnings for viewer Actions but this can be overridden by messageType. For viewer Actions, it's recommended they implement LoggingAware (which AbstractViewActionSupport already does).

Message Types
DEFAULT Uses default setting of controlling interceptor or library, which is usually Action error messages for form processing Actions and logged as warnings for view ActionsMessage. Default.
ERROR Message added to Action level error messages.
FIELD Message added to field error messages using same name as field.
IGNORE Message is not shown to user or logged. This is not recommended.
LOG_DEBUG Logged to Action's Log4j2 logger (or controlling interceptor's if not available) at DEBUG level.
LOG_ERROR Logged to Action's Log4j2 logger (or controlling interceptor's if not available) at ERROR level.
LOG_INFO Logged to Action's Log4j2 logger (or controlling interceptor's if not available) at INFO level.
LOG_TRACE Logged to Action's Log4j2 logger (or controlling interceptor's if not available) at TRACE level.
LOG_WARN Logged to Action's Log4j2 logger (or controlling interceptor's if not available) at WARN level.
MESSAGE Message added to Action level info messages.
WARNING Message added to Action level warning messages.

Other parameters

Other Parameters
message If not empty string, text message to display. Used if messageKey is empty string or finds no message.
messageKey If not empty string, message key to retrieve from Action's TextProvider. Uses message if no key provided or no message found.
parsedFieldName If not empty string, name of field to contain parsed value. Defaults to 'parsed' plus capitalised field name, such as 'parsedLimit'. Only applies for pair conversion.
separator Separator between numbers. Defaults to ','.

When applied to a view helper field, StrutsMiscellaneousLibrary#updateDisplay formats from a source record field with the same name but only certain combinations are recognised.

Formatting Annotation Usage
Display field type Record field type Notes
String single value Integer array or collection

  • Element Details

    • message

      String message
      Default:
      ""

    • messageKey

      String messageKey
      Default:
      ""

    • messageType

      Required.MessageType messageType
      Default:
      DEFAULT

    • parsedFieldName

      String parsedFieldName
      Default:
      ""

    • separator

      String separator
      Default:
      ","