Class QueryTreeBuilder (2.0.0) 

public class QueryTreeBuilder

A generator of AST representation of a query. This class uses the given factory to produce a query parser which parses user specified query. If successful it returns the root of an AST representing the parsed query.

Inheritance

java.lang.Object > QueryTreeBuilder

Constructors

QueryTreeBuilder()

public QueryTreeBuilder()

QueryTreeBuilder(QueryParserFactory parserFactory)

public QueryTreeBuilder(QueryParserFactory parserFactory)
Parameter
Name Description
parserFactory QueryParserFactory

Methods

parse(String query)

public CommonTree parse(String query)

Parses the user query and returns its AST.

Parameter
Name Description
query String

the user query to be parsed
Returns
Type Description
org.antlr.runtime.tree.CommonTree

a CommonTree constructed from the query
Exceptions
Type Description
org.antlr.runtime.RecognitionException

if the user query is invalid