org.apache.tajo.plan.serder

Class EvalNodeDeserializer

java.lang.Object

org.apache.tajo.plan.serder.EvalNodeDeserializer

public class EvalNodeDeserializer
extends Object

It deserializes a serialized eval tree consisting of a number of EvalNodes. EvalNodeSerializer serializes an eval tree in a postfix traverse order. So, this class firstly sorts all serialized eval nodes in ascending order of their sequence IDs. Then, it sequentially restores each serialized node to EvalNode instance.

See Also:

EvalNodeSerializer

Constructor Summary

Constructors

Constructor and Description
EvalNodeDeserializer()

Method Summary

Methods

Modifier and Type	Method and Description
static EvalNode	deserialize(OverridableConf context, PlanProto.EvalNodeTree tree)
static Datum	deserialize(PlanProto.Datum datum)

Methods inherited from class java.lang.Object

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

Constructor Detail

EvalNodeDeserializer

public EvalNodeDeserializer()

Method Detail

deserialize

public static EvalNode deserialize(OverridableConf context,
                   PlanProto.EvalNodeTree tree)

deserialize

public static Datum deserialize(PlanProto.Datum datum)