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

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

public class ParseDriver
extends Object

ParseDriver.

Nested Class Summary

class	ParseDriver.ANTLRNoCaseStringStream ANTLRNoCaseStringStream.
class	ParseDriver.HiveLexerX HiveLexerX.

Field Summary

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

ParseDriver()

Method Summary

ASTNode	parse(String command)
ASTNode	parse(String command, Context ctx)
ASTNode	parse(String command, Context ctx, boolean setTokenRewriteStream) Parses a command, optionally assigning the parser's token stream to the given context.
ASTNode	parseSelect(String command, Context ctx)

Methods inherited from class java.lang.Object

equals, 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 ASTNode parse(String command)
              throws ParseException

Throws:

ParseException

parse

public ASTNode parse(String command,
                     Context ctx)
              throws ParseException

Throws:

ParseException

parse

public ASTNode parse(String command,
                     Context ctx,
                     boolean setTokenRewriteStream)
              throws ParseException

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

Parameters:

command - command to parse

ctx - context with which to associate this parser's token stream, or null if either no context is available or the context already has an existing stream

Returns:

parsed AST

Throws:

ParseException

parseSelect

public ASTNode parseSelect(String command,
                           Context ctx)
                    throws ParseException

Throws:

ParseException