Package org.apache.iceberg.types

Class CheckCompatibility

java.lang.Object

org.apache.iceberg.types.TypeUtil.CustomOrderSchemaVisitor<List<String>>

org.apache.iceberg.types.CheckCompatibility

public class CheckCompatibility
extends TypeUtil.CustomOrderSchemaVisitor<List<String>>

Method Summary

Modifier and Type	Method	Description
List<String>	field(Types.NestedField readField, Supplier<List<String>> fieldErrors)
List<String>	list(Types.ListType readList, Supplier<List<String>> elementErrors)
List<String>	map(Types.MapType readMap, Supplier<List<String>> keyErrors, Supplier<List<String>> valueErrors)
List<String>	primitive(Type.PrimitiveType readPrimitive)
static List<String>	readCompatibilityErrors(Schema readSchema, Schema writeSchema)	Returns a list of compatibility errors for reading with the given read schema.
List<String>	schema(Schema readSchema, Supplier<List<String>> structErrors)
List<String>	struct(Types.StructType readStruct, Iterable<List<String>> fieldErrorLists)
static List<String>	typeCompatibilityErrors(Schema readSchema, Schema writeSchema)	Returns a list of compatibility errors for writing with the given write schema.
static List<String>	typeCompatibilityErrors(Schema readSchema, Schema writeSchema, boolean checkOrdering)	Returns a list of compatibility errors for writing with the given write schema.
static List<String>	writeCompatibilityErrors(Schema readSchema, Schema writeSchema)	Returns a list of compatibility errors for writing with the given write schema.
static List<String>	writeCompatibilityErrors(Schema readSchema, Schema writeSchema, boolean checkOrdering)	Returns a list of compatibility errors for writing with the given write schema.

Methods inherited from class java.lang.Object

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

Method Details

writeCompatibilityErrors

public static List<String> writeCompatibilityErrors(Schema readSchema,
 Schema writeSchema)

Returns a list of compatibility errors for writing with the given write schema. This includes nullability: writing optional (nullable) values to a required field is an error.

Parameters:

readSchema - a read schema

writeSchema - a write schema

Returns:

a list of error details, or an empty list if there are no compatibility problems

writeCompatibilityErrors

public static List<String> writeCompatibilityErrors(Schema readSchema,
 Schema writeSchema,
 boolean checkOrdering)

Returns a list of compatibility errors for writing with the given write schema. This includes nullability: writing optional (nullable) values to a required field is an error Optionally this method allows case where input schema has different ordering than table schema.

Parameters:

readSchema - a read schema

writeSchema - a write schema

checkOrdering - If false, allow input schema to have different ordering than table schema

Returns:

a list of error details, or an empty list if there are no compatibility problems

typeCompatibilityErrors

public static List<String> typeCompatibilityErrors(Schema readSchema,
 Schema writeSchema,
 boolean checkOrdering)

Returns a list of compatibility errors for writing with the given write schema. This checks type compatibility and not nullability: writing optional (nullable) values to a required field is not an error. To check nullability as well as types, Optionally this method allows case where input schema has different ordering than table schema. use writeCompatibilityErrors(Schema, Schema).

Parameters:

readSchema - a read schema

writeSchema - a write schema

checkOrdering - If false, allow input schema to have different ordering than table schema

Returns:

a list of error details, or an empty list if there are no compatibility problems

typeCompatibilityErrors

public static List<String> typeCompatibilityErrors(Schema readSchema,
 Schema writeSchema)

Returns a list of compatibility errors for writing with the given write schema. This checks type compatibility and not nullability: writing optional (nullable) values to a required field is not an error. To check nullability as well as types, use writeCompatibilityErrors(Schema, Schema).

Parameters:

readSchema - a read schema

writeSchema - a write schema

Returns:

a list of error details, or an empty list if there are no compatibility problems

readCompatibilityErrors

public static List<String> readCompatibilityErrors(Schema readSchema,
 Schema writeSchema)

Returns a list of compatibility errors for reading with the given read schema.

Parameters:

readSchema - a read schema

writeSchema - a write schema

Returns:

a list of error details, or an empty list if there are no compatibility problems

schema

public List<String> schema(Schema readSchema,
 Supplier<List<String>> structErrors)

Overrides:

schema in class TypeUtil.CustomOrderSchemaVisitor<List<String>>

struct

public List<String> struct(Types.StructType readStruct,
 Iterable<List<String>> fieldErrorLists)

Overrides:

struct in class TypeUtil.CustomOrderSchemaVisitor<List<String>>

field

public List<String> field(Types.NestedField readField,
 Supplier<List<String>> fieldErrors)

Overrides:

field in class TypeUtil.CustomOrderSchemaVisitor<List<String>>

list

public List<String> list(Types.ListType readList,
 Supplier<List<String>> elementErrors)

Overrides:

list in class TypeUtil.CustomOrderSchemaVisitor<List<String>>

map

public List<String> map(Types.MapType readMap,
 Supplier<List<String>> keyErrors,
 Supplier<List<String>> valueErrors)

Overrides:

map in class TypeUtil.CustomOrderSchemaVisitor<List<String>>

primitive

public List<String> primitive(Type.PrimitiveType readPrimitive)

Overrides:

primitive in class TypeUtil.CustomOrderSchemaVisitor<List<String>>