org.apache.pig.data
Class InternalMap

java.lang.Object
  java.util.AbstractMap<K,V>
      java.util.HashMap<Object,Object>
          org.apache.pig.data.InternalMap

All Implemented Interfaces:

Serializable, Cloneable, Map<Object,Object>

public class InternalMap
extends HashMap<Object,Object>

This class is an empty extension of Map. It only exists so that DataType.findType() can distinguish an internal map type that maps object to object from an external map type that is string to object.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Constructor Summary

InternalMap()

InternalMap(int size)

Method Summary

Methods inherited from class java.util.HashMap

clear, clone, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

InternalMap

public InternalMap()

InternalMap

public InternalMap(int size)