org.apache.iceberg.parquet

Class TypeWithSchemaVisitor<T>

java.lang.Object

org.apache.iceberg.parquet.TypeWithSchemaVisitor<T>

Type Parameters:

T - the Java class returned by the visitor

Direct Known Subclasses:

VectorizedReaderBuilder

public class TypeWithSchemaVisitor<T>
extends java.lang.Object

Visitor for traversing a Parquet type with a companion Iceberg type.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.ArrayDeque<java.lang.String>	fieldNames

Constructor Summary

Constructors

Constructor and Description
TypeWithSchemaVisitor()

Method Summary

Modifier and Type	Method and Description
protected java.lang.String[]	currentPath()
T	list(Types.ListType iList, org.apache.parquet.schema.GroupType array, T element)
T	map(Types.MapType iMap, org.apache.parquet.schema.GroupType map, T key, T value)
T	message(Types.StructType iStruct, org.apache.parquet.schema.MessageType message, java.util.List<T> fields)
protected java.lang.String[]	path(java.lang.String name)
T	primitive(Type.PrimitiveType iPrimitive, org.apache.parquet.schema.PrimitiveType primitive)
T	struct(Types.StructType iStruct, org.apache.parquet.schema.GroupType struct, java.util.List<T> fields)
static <T> T	visit(Type iType, org.apache.parquet.schema.Type type, TypeWithSchemaVisitor<T> visitor)

Methods inherited from class java.lang.Object

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

Field Detail

fieldNames

protected java.util.ArrayDeque<java.lang.String> fieldNames

Constructor Detail

TypeWithSchemaVisitor

public TypeWithSchemaVisitor()

Method Detail

visit

public static <T> T visit(Type iType,
                          org.apache.parquet.schema.Type type,
                          TypeWithSchemaVisitor<T> visitor)

message

public T message(Types.StructType iStruct,
                 org.apache.parquet.schema.MessageType message,
                 java.util.List<T> fields)

struct

public T struct(Types.StructType iStruct,
                org.apache.parquet.schema.GroupType struct,
                java.util.List<T> fields)

list

public T list(Types.ListType iList,
              org.apache.parquet.schema.GroupType array,
              T element)

map

public T map(Types.MapType iMap,
             org.apache.parquet.schema.GroupType map,
             T key,
             T value)

primitive

public T primitive(Type.PrimitiveType iPrimitive,
                   org.apache.parquet.schema.PrimitiveType primitive)

currentPath

protected java.lang.String[] currentPath()

path

protected java.lang.String[] path(java.lang.String name)