org.apache.hadoop.hive.ql

Class Compiler

java.lang.Object

org.apache.hadoop.hive.ql.Compiler

public class Compiler
extends Object

The compiler compiles the command, by creating a QueryPlan from a String command. Also opens a transaction if necessary.

Constructor Summary

Constructors

Constructor and Description
Compiler(Context context, DriverContext driverContext, DriverState driverState)

Method Summary

Modifier and Type	Method and Description
QueryPlan	compile(String rawCommand, boolean deferClose)
protected void	initializeFetchTask(QueryPlan plan)

Methods inherited from class java.lang.Object

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

Constructor Detail

Compiler

public Compiler(Context context,
                DriverContext driverContext,
                DriverState driverState)

Method Detail

compile

public QueryPlan compile(String rawCommand,
                         boolean deferClose)
                  throws CommandProcessorException

Parameters:

deferClose - indicates if the close/destroy should be deferred when the process has been interrupted it should be set to true if the compile method is called within another method like runInternal, which defers the close to the called in that method.

Throws:

CommandProcessorException

initializeFetchTask

protected void initializeFetchTask(QueryPlan plan)