org.apache.hadoop.hive.ql.parse

Class ParseDriver

java.lang.Object

org.apache.hadoop.hive.ql.parse.ParseDriver

public class ParseDriver
extends Object

ParseDriver.

Field Summary

Fields

Modifier and Type	Field and Description
static org.antlr.runtime.tree.TreeAdaptor	adaptor Tree adaptor for making antlr return ASTNodes instead of CommonTree nodes so that the graph walking algorithms and the rules framework defined in ql.lib can be used with the AST Nodes.

Constructor Summary

Constructors

Constructor and Description
ParseDriver()

Method Summary

Modifier and Type	Method and Description
ParseResult	parse(String command)
ParseResult	parse(String command, org.apache.hadoop.conf.Configuration configuration) Parses a command, optionally assigning the parser's token stream to the given context.
ASTNode	parseExpression(String command)
ASTNode	parseHint(String command)
ParseResult	parseSelect(String command, org.apache.hadoop.conf.Configuration configuration)
ASTNode	parseTriggerActionExpression(String command)
ASTNode	parseTriggerExpression(String command)

Methods inherited from class java.lang.Object

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

Field Detail

adaptor

public static final org.antlr.runtime.tree.TreeAdaptor adaptor

Tree adaptor for making antlr return ASTNodes instead of CommonTree nodes so that the graph walking algorithms and the rules framework defined in ql.lib can be used with the AST Nodes.

Constructor Detail

ParseDriver

public ParseDriver()

Method Detail

parse

public ParseResult parse(String command)
                  throws ParseException

Throws:

ParseException

parse

public ParseResult parse(String command,
                         org.apache.hadoop.conf.Configuration configuration)
                  throws ParseException

Parses a command, optionally assigning the parser's token stream to the given context.

Parameters:

command - command to parse

configuration - hive configuration

Returns:

parsed AST

Throws:

ParseException

parseHint

public ASTNode parseHint(String command)
                  throws ParseException

Throws:

ParseException

parseSelect

public ParseResult parseSelect(String command,
                               org.apache.hadoop.conf.Configuration configuration)
                        throws ParseException

Throws:

ParseException

parseExpression

public ASTNode parseExpression(String command)
                        throws ParseException

Throws:

ParseException

parseTriggerExpression

public ASTNode parseTriggerExpression(String command)
                               throws ParseException

Throws:

ParseException

parseTriggerActionExpression

public ASTNode parseTriggerActionExpression(String command)
                                     throws ParseException

Throws:

ParseException