Class VarArgsSQLFunction

public VarArgsSQLFunction(String begin,
                          String sep,
                          String end)

Constructs a VarArgsSQLFunction instance with a 'dynamic' return type. For a dynamic return type, the type of the arguments are used to resolve the type. An example of a function with a 'dynamic' return would be MAX or MIN which return a double or an integer etc based on the types of the arguments.

Parameters:

begin - The beginning of the function templating.

sep - The separator for each individual function argument.

end - The end of the function templating.

See Also:

Specifically, the 'columnType' argument is the 'dynamic' type.

public VarArgsSQLFunction(Type type,
                          String begin,
                          String sep,
                          String end)

Constructs a VarArgsSQLFunction instance with a 'static' return type. An example of a 'static' return type would be something like an UPPER function which is always returning a SQL VARCHAR and thus a string type.

Parameters:

type - The return type.

begin - The beginning of the function templating.

sep - The separator for each individual function argument.

end - The end of the function templating.

public Type getReturnType(Type columnType,
                          Mapping mapping)
            throws QueryException

Specified by:

getReturnType in interface SQLFunction

public boolean hasArguments()

Always returns true here.

Specified by:

hasArguments in interface SQLFunction

public boolean hasParenthesesIfNoArguments()

Always returns true here.

Specified by:

hasParenthesesIfNoArguments in interface SQLFunction

public String render(List args,
                     SessionFactoryImplementor factory)
            throws QueryException

Specified by:

render in interface SQLFunction

protected String transformArgument(String argument)

Called from render(List,SessionFactoryImplementor) to allow applying a change or transformation to each individual argument.

Parameters:

argument - The argument being processed.

Returns:

The transformed argument; may be the same, though should never be null.