org.apache.avro.io.parsing
Class ValidatingGrammarGenerator

java.lang.Object
  org.apache.avro.io.parsing.ValidatingGrammarGenerator

Direct Known Subclasses:

JsonGrammarGenerator, ResolvingGrammarGenerator

public class ValidatingGrammarGenerator
extends Object

The class that generates validating grammar.

Constructor Summary

ValidatingGrammarGenerator()

Method Summary

Symbol	generate(Schema schema) Returns the non-terminal that is the start symbol for the grammar for the given schema sc.
Symbol	generate(Schema sc, Map<org.apache.avro.io.parsing.ValidatingGrammarGenerator.LitS,Symbol> seen) Returns the non-terminal that is the start symbol for the grammar for the given schema sc.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ValidatingGrammarGenerator

public ValidatingGrammarGenerator()

Method Detail

generate

public Symbol generate(Schema schema)

Returns the non-terminal that is the start symbol for the grammar for the given schema sc.

generate

public Symbol generate(Schema sc,
                       Map<org.apache.avro.io.parsing.ValidatingGrammarGenerator.LitS,Symbol> seen)

Returns the non-terminal that is the start symbol for the grammar for the given schema sc. If there is already an entry for the given schema in the given map seen then that entry is returned. Otherwise a new symbol is generated and an entry is inserted into the map.

Parameters:

sc - The schema for which the start symbol is required

seen - A map of schema to symbol mapping done so far.

Returns:

The start symbol for the schema