org.apache.avro.io.parsing
Interface Parser.ActionHandler

All Known Implementing Classes:

JsonDecoder, JsonEncoder, ParsingDecoder, ResolvingDecoder, ValidatingDecoder, ValidatingEncoder

Enclosing class:

Parser

public static interface Parser.ActionHandler

The parser knows how to handle the terminal and non-terminal symbols. But it needs help from outside to handle implicit and explicit actions. The clients implement this interface to provide this help.

Method Summary

Symbol

doAction(Symbol input, Symbol top) Handle the action symbol top when the input is sought to be taken off the stack.

Method Detail

doAction

Symbol doAction(Symbol input,
                Symbol top)
                throws IOException

Handle the action symbol top when the input is sought to be taken off the stack.

Parameters:

input - The input symbol from the caller of advance

top - The symbol at the top the stack.

Returns:

null if advance() is to continue processing the stack. If not null the return value will be returned by advance().

Throws:

IOException