org.apache.hadoop.hive.ql.processors

Class CompileProcessor

java.lang.Object

org.apache.hadoop.hive.ql.processors.CompileProcessor

All Implemented Interfaces:

CommandProcessor

public class CompileProcessor
extends Object
implements CommandProcessor

Processor allows users to build code inside a hive session, then use this code as a UDF, Serde, or even a more complex entity like an input format or hook. Note: This class is stateful and not thread safe. Create a new instance for each invocation of CompileProcessor.

Field Summary

Fields

Modifier and Type	Field and Description
static String	AS
static SessionState.LogHelper	console
static String	GROOVY
static String	IO_TMP_DIR
static org.apache.commons.logging.Log	LOG
static String	NAMED

Constructor Summary

Constructors

Constructor and Description
CompileProcessor()

Method Summary

Methods

Modifier and Type	Method and Description
String	getCode()
String	getCommand()
String	getLang()
String	getNamed()
void	init()
CommandProcessorResponse	run(String command) User supplies dynamic code in this format: COMPILE ` some code here ` AS groovy NAMED something.groovy; CompileProcessor will compile and package this code into a jar.
void	setCode(String code)
void	setLang(String lang)
void	setNamed(String named)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

console

public static final SessionState.LogHelper console

IO_TMP_DIR

public static final String IO_TMP_DIR

See Also:

Constant Field Values

GROOVY

public static final String GROOVY

See Also:

Constant Field Values

AS

public static final String AS

See Also:

Constant Field Values

NAMED

public static final String NAMED

See Also:

Constant Field Values

Constructor Detail

CompileProcessor

public CompileProcessor()

Method Detail

init

public void init()

Specified by:

init in interface CommandProcessor

run

public CommandProcessorResponse run(String command)
                             throws CommandNeedRetryException

User supplies dynamic code in this format: COMPILE ` some code here ` AS groovy NAMED something.groovy; CompileProcessor will compile and package this code into a jar. The jar will be added to the session state via the session state's ADD RESOURCE command.

Specified by:

run in interface CommandProcessor

Parameters:

command - a String to be compiled

Returns:

CommandProcessorResponse with 0 for success and 1 for failure

Throws:

CommandNeedRetryException

getLang

public String getLang()

setLang

public void setLang(String lang)

getCode

public String getCode()

setCode

public void setCode(String code)

getNamed

public String getNamed()

setNamed

public void setNamed(String named)

getCommand

public String getCommand()