Package 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 Object

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

Field Summary

Fields

Modifier and Type	Field	Description
protected ArrayDeque<String>	fieldNames

Constructor Summary

Constructors

Constructor	Description
TypeWithSchemaVisitor()

Method Summary

Modifier and Type	Method	Description
protected 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, List<T> fields)
protected String[]	path(String name)
T	primitive(Type.PrimitiveType iPrimitive, org.apache.parquet.schema.PrimitiveType primitive)
T	struct(Types.StructType iStruct, org.apache.parquet.schema.GroupType struct, List<T> fields)
T	variant(Types.VariantType iVariant, org.apache.parquet.schema.GroupType variant, T result)
ParquetVariantVisitor<T>	variantVisitor()
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 Details

fieldNames

protected ArrayDeque<String> fieldNames

Constructor Details

TypeWithSchemaVisitor

public TypeWithSchemaVisitor()

Method Details

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,
 List<T> fields)

struct

public T struct(Types.StructType iStruct,
 org.apache.parquet.schema.GroupType struct,
 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)

variant

public T variant(Types.VariantType iVariant,
 org.apache.parquet.schema.GroupType variant,
 T result)

primitive

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

variantVisitor

public ParquetVariantVisitor<T> variantVisitor()

currentPath

protected String[] currentPath()

path

protected String[] path(String name)