Constructor Detail

• NvlFunction

  public NvlFunction()

Method Detail

• hasArguments

  public boolean hasArguments()

  Description copied from interface: SQLFunction
  Does this function have any arguments?

  Specified by:

  hasArguments in interface SQLFunction

  Returns:

  True if the function expects to have parameters; false otherwise.

• hasParenthesesIfNoArguments

  public boolean hasParenthesesIfNoArguments()

  Description copied from interface: SQLFunction
  If there are no arguments, are parentheses required?

  Specified by:

  hasParenthesesIfNoArguments in interface SQLFunction

  Returns:

  True if a no-arg call of this function requires parentheses.

• getReturnType

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

  Description copied from interface: SQLFunction
  The return type of the function. May be either a concrete type which is preset, or variable depending upon the type of the first function argument.

  Note, the 'firstArgumentType' parameter should match the one passed into SQLFunction.render(org.hibernate.type.Type, java.util.List, org.hibernate.engine.SessionFactoryImplementor)

  Specified by:

  getReturnType in interface SQLFunction

  Parameters:

  argumentType - The type of the first argument

  mapping - The mapping source.

  Returns:

  The type to be expected as a return.

  Throws:

  QueryException - Indicates an issue resolving the return type.

• render

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

  Description copied from interface: SQLFunction
  Render the function call as SQL fragment.

  Note, the 'firstArgumentType' parameter should match the one passed into SQLFunction.getReturnType(org.hibernate.type.Type, org.hibernate.engine.Mapping)

  Specified by:

  render in interface SQLFunction

  Parameters:

  argumentType - The type of the first argument

  args - The function arguments

  factory - The SessionFactory

  Returns:

  The rendered function call

  Throws:

  QueryException - Indicates a problem rendering the function call.