org.spf4j.avro.schema

Interface SchemaVisitor<T>

All Known Implementing Classes:

CloningVisitor, ImmutableCloningVisitor, SchemasWithClasses

@Beta
 @ParametersAreNonnullByDefault
public interface SchemaVisitor<T>

Author:

zoly

Method Summary

Modifier and Type	Method and Description
SchemaVisitorAction	afterVisitNonTerminal(org.apache.avro.Schema nonTerminal) Invoked for schemas with children after its children have been visited.
default T	get() Invoked when visiting is complete.
SchemaVisitorAction	visitNonTerminal(org.apache.avro.Schema nonTerminal) Invoked for schema with children before proceeding to visit the children.
SchemaVisitorAction	visitTerminal(org.apache.avro.Schema terminal) Invoked for schemas that do not have "child" schemas or for a previously encountered schema with children which will be treated as a terminal.

Method Detail

visitTerminal

@Nonnull
 @CheckReturnValue
SchemaVisitorAction visitTerminal(org.apache.avro.Schema terminal)

Invoked for schemas that do not have "child" schemas or for a previously encountered schema with children which will be treated as a terminal. (to avoid circular recursion)

Parameters:

terminal -

Returns:

visitNonTerminal

@Nonnull
 @CheckReturnValue
SchemaVisitorAction visitNonTerminal(org.apache.avro.Schema nonTerminal)

Invoked for schema with children before proceeding to visit the children.

Parameters:

nonTerminal -

Returns:

afterVisitNonTerminal

@Nonnull
 @CheckReturnValue
SchemaVisitorAction afterVisitNonTerminal(org.apache.avro.Schema nonTerminal)

Invoked for schemas with children after its children have been visited.

Parameters:

nonTerminal -

Returns:

get

@Nullable
default T get()

Invoked when visiting is complete.

Returns:

a value which will be returned by the visit method.