org.apache.hadoop.hive.ql.parse
Class TaskCompiler

java.lang.Object
  org.apache.hadoop.hive.ql.parse.TaskCompiler

Direct Known Subclasses:

MapReduceCompiler, TezCompiler

public abstract class TaskCompiler
extends Object

TaskCompiler is a the base class for classes that compile operator pipelines into tasks.

Constructor Summary

TaskCompiler()

Method Summary

void	compile(ParseContext pCtx, List<Task<? extends Serializable>> rootTasks, HashSet<ReadEntity> inputs, HashSet<WriteEntity> outputs)
ParseContext	getParseContext(ParseContext pCtx, List<Task<? extends Serializable>> rootTasks) Create a clone of the parse context
void	init(HiveConf conf, SessionState.LogHelper console, Hive db)

Methods inherited from class java.lang.Object

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

Constructor Detail

TaskCompiler

public TaskCompiler()

Method Detail

init

public void init(HiveConf conf,
                 SessionState.LogHelper console,
                 Hive db)

compile

public void compile(ParseContext pCtx,
                    List<Task<? extends Serializable>> rootTasks,
                    HashSet<ReadEntity> inputs,
                    HashSet<WriteEntity> outputs)
             throws SemanticException

Throws:

SemanticException

getParseContext

public ParseContext getParseContext(ParseContext pCtx,
                                    List<Task<? extends Serializable>> rootTasks)

Create a clone of the parse context