Package org.apache.tapestry5
Interface NullFieldStrategy
-
- All Known Implementing Classes:
DefaultNullFieldStrategy,ZeroNullFieldStrategy
public interface NullFieldStrategy
Defines a strategy, used byFieldcomponents such asTextField, to handle the case where either the server-side value to be sent (as a string) to the client, or the client-side string passed back up to the server, is null or blank.- See Also:
NullFieldStrategySource
-
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.StringreplaceFromClient()Provides a replacement value for a null or blank string passed from the client to the server as part of a form submission.java.lang.ObjectreplaceToClient()Provides a replacement value for null, when converting the server-side object to a client-side string.
-
-
-
Method Detail
-
replaceToClient
java.lang.Object replaceToClient()
Provides a replacement value for null, when converting the server-side object to a client-side string. The replacement value, if non-null, will be passed toTranslator.toClient(Object).
-
replaceFromClient
java.lang.String replaceFromClient()
Provides a replacement value for a null or blank string passed from the client to the server as part of a form submission. This replacement value will be passed toTranslator.parseClient(Field, String, String)as if it were the value supplied by the user.- Returns:
- replacement value (this must not be null)
-
-