net.esper.eql.parse
Class ASTConstantHelper

java.lang.Object
  extended by net.esper.eql.parse.ASTConstantHelper
All Implemented Interfaces:
EqlEvalTokenTypes

public class ASTConstantHelper
extends Object
implements EqlEvalTokenTypes

Parses constant strings and returns the constant Object.


Field Summary
 
Fields inherited from interface net.esper.eql.generated.EqlEvalTokenTypes
ALL, AND_EXPR, ARRAY_EXPR, ARRAY_PARAM_LIST, AS, ASC, AVEDEV, AVG, BAND, BAND_ASSIGN, BETWEEN, BNOT, BOGUS, BOOL_TYPE, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, BY, CASE, CASE2, CAST, CAST_EXPR, CLASS_IDENT, COALESCE, COLON, COMMA, CONCAT, COUNT, CURRENT_TIMESTAMP, DATABASE_JOIN_EXPR, DAY_PART, DBFROM_CLAUSE, DBSELECT_EXPR, DBWHERE_CLAUSE, DEC, DESC, DISTINCT, DIV, DIV_ASSIGN, DOT, DOUBLE_TYPE, ELSE, END, EOF, EQUAL, EQUALS, ESC, ESCAPE, EVAL_AND_EXPR, EVAL_BITWISE_EXPR, EVAL_EQUALS_EXPR, EVAL_IDENT, EVAL_NOTEQUALS_EXPR, EVAL_OR_EXPR, EVENT_FILTER_BETWEEN, EVENT_FILTER_EXPR, EVENT_FILTER_IDENT, EVENT_FILTER_IN, EVENT_FILTER_NAME_TAG, EVENT_FILTER_NOT_BETWEEN, EVENT_FILTER_NOT_IN, EVENT_FILTER_NOT_RANGE, EVENT_FILTER_PARAM, EVENT_FILTER_RANGE, EVENT_LIMIT_EXPR, EVENT_PROP_DYNAMIC_INDEXED, EVENT_PROP_DYNAMIC_MAPPED, EVENT_PROP_DYNAMIC_SIMPLE, EVENT_PROP_EXPR, EVENT_PROP_INDEXED, EVENT_PROP_MAPPED, EVENT_PROP_SIMPLE, EVENTS, EVERY_EXPR, EXISTS, EXISTS_SUBSELECT_EXPR, EXPONENT, FIRST, FLOAT_SUFFIX, FLOAT_TYPE, FOLLOWED_BY, FOLLOWED_BY_EXPR, FROM, FULL, FULL_OUTERJOIN_EXPR, GE, GROUP, GROUP_BY_EXPR, GT, GUARD_EXPR, HAVING, HAVING_EXPR, HEX_DIGIT, HOUR_PART, IDENT, IN_RANGE, IN_SET, IN_SUBSELECT_EXPR, IN_SUBSELECT_QUERY_EXPR, INC, INSERT, INSERTINTO_EXPR, INSERTINTO_EXPRCOL, INSERTINTO_STREAM_NAME, INSTANCEOF, INT_TYPE, INTO, IS, ISTREAM, JOIN, LAND, LAST, LAST_OPERATOR, LBRACK, LCURLY, LE, LEFT, LEFT_OUTERJOIN_EXPR, LIB_FUNCTION, LIKE, LITERAL_day, LITERAL_days, LITERAL_false, LITERAL_hour, LITERAL_hours, LITERAL_millisecond, LITERAL_milliseconds, LITERAL_minute, LITERAL_msec, LITERAL_null, LITERAL_sec, LITERAL_second, LITERAL_true, LNOT, LONG_TYPE, LOR, LPAREN, LT, LW, MAX, MEDIAN, METADATASQL, MILLISECOND_PART, MIN, MIN_LIMIT_EXPR, MINUS, MINUS_ASSIGN, MINUTE_PART, MINUTES, ML_COMMENT, MOD, MOD_ASSIGN, NOT_BETWEEN, NOT_EQUAL, NOT_EXPR, NOT_IN_RANGE, NOT_IN_SET, NOT_IN_SUBSELECT_EXPR, NOT_LIKE, NOT_REGEXP, NULL_TREE_LOOKAHEAD, NULL_TYPE, NUM_DOUBLE, NUM_FLOAT, NUM_INT, NUM_LONG, NUMERIC_PARAM_FREQUENCE, NUMERIC_PARAM_FREQUENCY, NUMERIC_PARAM_LIST, NUMERIC_PARAM_RANGE, OBSERVER_EXPR, ON, OR_EXPR, ORDER, ORDER_BY_EXPR, ORDER_ELEMENT_EXPR, OUTER, OUTERJOIN_EXPR, OUTPUT, PATTERN, PATTERN_INCL_EXPR, PLUS, PLUS_ASSIGN, PREVIOUS, PRIOR, QUESTION, QUOTED_STRING_LITERAL, RBRACK, RCURLY, REGEXP, RIGHT, RIGHT_OUTERJOIN_EXPR, RPAREN, RSTREAM, SEC_LIMIT_EXPR, SECOND_PART, SECONDS, SELECT, SELECTION_ELEMENT_EXPR, SELECTION_EXPR, SEMI, SL, SL_ASSIGN, SL_COMMENT, SQL, SQL_NE, SR, SR_ASSIGN, STAR, STAR_ASSIGN, STDDEV, STREAM_EXPR, STRING_LITERAL, STRING_TYPE, SUBSELECT_EXPR, SUBSTITUTION, SUM, THEN, TIME_PERIOD, UNARY_MINUS, VIEW_EXPR, WEEKDAY, WEEKDAY_OPERATOR, WHEN, WHERE, WHERE_EXPR, WILDCARD_SELECT, WS
 
Constructor Summary
ASTConstantHelper()
           
 
Method Summary
static Object parse(antlr.collections.AST node)
          Parse the AST constant node and return Object value.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ASTConstantHelper

public ASTConstantHelper()
Method Detail

parse

public static Object parse(antlr.collections.AST node)
Parse the AST constant node and return Object value.

Parameters:
node - - parse node for which to parse the string value
Returns:
value matching AST node type