org.apache.avro.avsc

Class ResolvingVisitor

java.lang.Object

org.apache.avro.avsc.ResolvingVisitor

All Implemented Interfaces:

SchemaVisitor<org.apache.avro.Schema>

public final class ResolvingVisitor
extends Object
implements SchemaVisitor<org.apache.avro.Schema>

this visitor will create a clone of the original Schema and will also resolve all unresolved schemas by default. what attributes are copied is customizable.

Constructor Summary

Constructors

Constructor and Description
ResolvingVisitor(org.apache.avro.Schema root, IdentityHashMap<org.apache.avro.Schema,org.apache.avro.Schema> replace, Function<String,org.apache.avro.Schema> symbolTable, boolean allowUndefinedLogicalTypes)

Method Summary

Modifier and Type	Method and Description
SchemaVisitorAction	afterVisitNonTerminal(org.apache.avro.Schema nt) Invoked for schemas with children after its children have been visited.
static void	copyAllProperties(org.apache.avro.Schema.Field first, org.apache.avro.Schema.Field second)
static void	copyAllProperties(org.apache.avro.Schema first, org.apache.avro.Schema second)
org.apache.avro.Schema	get() Invoked when visiting is complete.
String	toString()
SchemaVisitorAction	visitNonTerminal(org.apache.avro.Schema nt) 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 (like string, int ...) or for a previously encountered schema with children, which will be treated as a terminal.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResolvingVisitor

public ResolvingVisitor(org.apache.avro.Schema root,
                        IdentityHashMap<org.apache.avro.Schema,org.apache.avro.Schema> replace,
                        Function<String,org.apache.avro.Schema> symbolTable,
                        boolean allowUndefinedLogicalTypes)

Method Detail

visitTerminal

public SchemaVisitorAction visitTerminal(org.apache.avro.Schema terminal)

Description copied from interface: SchemaVisitor

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

Specified by:

visitTerminal in interface SchemaVisitor<org.apache.avro.Schema>

Returns:

copyAllProperties

public static void copyAllProperties(org.apache.avro.Schema first,
                                     org.apache.avro.Schema second)

copyAllProperties

public static void copyAllProperties(org.apache.avro.Schema.Field first,
                                     org.apache.avro.Schema.Field second)

visitNonTerminal

public SchemaVisitorAction visitNonTerminal(org.apache.avro.Schema nt)

Description copied from interface: SchemaVisitor

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

Specified by:

visitNonTerminal in interface SchemaVisitor<org.apache.avro.Schema>

Returns:

afterVisitNonTerminal

public SchemaVisitorAction afterVisitNonTerminal(org.apache.avro.Schema nt)

Description copied from interface: SchemaVisitor

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

Specified by:

afterVisitNonTerminal in interface SchemaVisitor<org.apache.avro.Schema>

Returns:

get

public org.apache.avro.Schema get()

Description copied from interface: SchemaVisitor

Invoked when visiting is complete.

Specified by:

get in interface SchemaVisitor<org.apache.avro.Schema>

Returns:

a value which will be returned by the visit method.

toString

public String toString()

Overrides:

toString in class Object