org.apache.avro.io.parsing

Class JsonGrammarGenerator

java.lang.Object

org.apache.avro.io.parsing.ValidatingGrammarGenerator

org.apache.avro.io.parsing.JsonGrammarGenerator

public class JsonGrammarGenerator
extends ValidatingGrammarGenerator

The class that generates a grammar suitable to parse Avro data in JSON format.

Constructor Summary

Constructors

Constructor and Description
JsonGrammarGenerator()

Method Summary

Modifier and Type	Method and Description
Symbol	generate(Schema schema) Returns the non-terminal that is the start symbol for the grammar 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 grammar of the given schema sc.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonGrammarGenerator

public JsonGrammarGenerator()

Method Detail

generate

public Symbol generate(Schema schema)

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

Overrides:

generate in class ValidatingGrammarGenerator

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 grammar of 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.

Overrides:

generate in class ValidatingGrammarGenerator

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