org.apache.paimon.casting

Class CastedMap

java.lang.Object

org.apache.paimon.casting.CastedMap

All Implemented Interfaces:

InternalMap

public class CastedMap
extends Object
implements InternalMap

An implementation of InternalMap which provides a casted view of the underlying InternalMap.

It reads data from underlying InternalMap according to source logical type and casts it with specific CastExecutor.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CastedMap(CastElementGetter castValueGetter)

Method Summary

Modifier and Type	Method and Description
static CastedMap	from(CastElementGetter castValueGetter) Replaces the underlying InternalMap backing this CastedMap.
InternalArray	keyArray() Returns an array view of the keys contained in this map.
CastedMap	replaceMap(InternalMap map)
int	size() Returns the number of key-value mappings in this map.
InternalArray	valueArray() Returns an array view of the values contained in this map.

Methods inherited from class java.lang.Object

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

Constructor Detail

CastedMap

protected CastedMap(CastElementGetter castValueGetter)

Method Detail

from

public static CastedMap from(CastElementGetter castValueGetter)

Replaces the underlying InternalMap backing this CastedMap.

This method replaces the map in place and does not return a new object. This is done for performance reasons.

replaceMap

public CastedMap replaceMap(InternalMap map)

size

public int size()

Description copied from interface: InternalMap

Returns the number of key-value mappings in this map.

Specified by:

size in interface InternalMap

keyArray

public InternalArray keyArray()

Description copied from interface: InternalMap

Returns an array view of the keys contained in this map.

A key-value pair has the same index in the key array and value array.

Specified by:

keyArray in interface InternalMap

valueArray

public InternalArray valueArray()

Description copied from interface: InternalMap

Returns an array view of the values contained in this map.

A key-value pair has the same index in the key array and value array.

Specified by:

valueArray in interface InternalMap