org.hibernate.hql.ast.util
Class LiteralProcessor

java.lang.Object
  org.hibernate.hql.ast.util.LiteralProcessor

All Implemented Interfaces:

HqlSqlTokenTypes

public class LiteralProcessor
extends Object
implements HqlSqlTokenTypes

A delegate that handles literals and constants for HqlSqlWalker, performing the token replacement functions and classifying literals.

Author:

josh Sep 2, 2004 7:15:30 AM

Field Summary

static int	APPROXIMATE Indicates that Float and Double literal values should be treated using the SQL "approximate" format (i.e., '1E-3')
static int	DECIMAL_LITERAL_FORMAT In what format should Float and Double literal values be sent to the database?
static int	EXACT Indicates that Float and Double literal values should be treated using the SQL "exact" format (i.e., '.001')

Fields inherited from interface org.hibernate.hql.antlr.HqlSqlTokenTypes

AGGREGATE, ALIAS, ALIAS_REF, ALL, AND, ANY, AS, ASCENDING, AVG, BETWEEN, BOGUS, BOTH, CASE, CASE2, CLASS, CLOSE, CLOSE_BRACKET, COLON, COMMA, CONCAT, CONSTANT, CONSTRUCTOR, COUNT, DELETE, DESCENDING, DISTINCT, DIV, DOT, ELEMENTS, ELSE, EMPTY, END, EOF, EQ, ESCAPE, ESCqs, EXISTS, EXPONENT, EXPR_LIST, FALSE, FETCH, FILTER_ENTITY, FILTERS, FLOAT_SUFFIX, FROM, FROM_FRAGMENT, FULL, GE, GROUP, GT, HAVING, HEX_DIGIT, ID_LETTER, ID_START_LETTER, IDENT, IMPLIED_FROM, IN, IN_LIST, INDEX_OP, INDICES, INNER, INSERT, INTO, IS, IS_NOT_NULL, IS_NULL, JAVA_CONSTANT, JOIN, JOIN_FRAGMENT, LE, LEADING, LEFT, LEFT_OUTER, LIKE, LITERAL_ascending, LITERAL_by, LITERAL_descending, LT, MAX, MEMBER, METHOD_CALL, METHOD_NAME, MIN, MINUS, NAMED_PARAM, NE, NEW, NOT, NOT_BETWEEN, NOT_IN, NOT_LIKE, NULL, NULL_TREE_LOOKAHEAD, NUM_DOUBLE, NUM_FLOAT, NUM_INT, NUM_LONG, OBJECT, OF, ON, OPEN, OPEN_BRACKET, OR, ORDER, ORDER_ELEMENT, OUTER, PARAM, PLUS, PROPERTIES, PROPERTY_REF, QUERY, QUOTED_STRING, RANGE, RIGHT, RIGHT_OUTER, ROW_STAR, SELECT, SELECT_CLAUSE, SELECT_COLUMNS, SELECT_EXPR, SELECT_FROM, SET, SOME, SQL_NE, SQL_TOKEN, STAR, SUM, THEN, THETA_JOINS, TRAILING, TRUE, UNARY_MINUS, UNARY_PLUS, UNION, UPDATE, VECTOR_EXPR, VERSIONED, WEIRD_IDENT, WHEN, WHERE, WITH, WS

Constructor Summary

LiteralProcessor(HqlSqlWalker hqlSqlWalker)

Method Summary

String	determineDecimalRepresentation(String text, int type)
boolean	isAlias(String alias)
void	lookupConstant(DotNode node)
void	processBoolean(antlr.collections.AST constant)
void	processConstant(antlr.collections.AST constant, boolean resolveIdent)
void	processNumeric(antlr.collections.AST literal)

Methods inherited from class java.lang.Object

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

Field Detail

EXACT

public static final int EXACT

Indicates that Float and Double literal values should be treated using the SQL "exact" format (i.e., '.001')

See Also:

Constant Field Values

APPROXIMATE

public static final int APPROXIMATE

Indicates that Float and Double literal values should be treated using the SQL "approximate" format (i.e., '1E-3')

See Also:

Constant Field Values

DECIMAL_LITERAL_FORMAT

public static int DECIMAL_LITERAL_FORMAT

In what format should Float and Double literal values be sent to the database?

See Also:

#EXACT, #APPROXIMATE

Constructor Detail

LiteralProcessor

public LiteralProcessor(HqlSqlWalker hqlSqlWalker)

Method Detail

isAlias

public boolean isAlias(String alias)

processConstant

public void processConstant(antlr.collections.AST constant,
                            boolean resolveIdent)
                     throws antlr.SemanticException

Throws:

antlr.SemanticException

lookupConstant

public void lookupConstant(DotNode node)
                    throws antlr.SemanticException

Throws:

antlr.SemanticException

processBoolean

public void processBoolean(antlr.collections.AST constant)

processNumeric

public void processNumeric(antlr.collections.AST literal)

determineDecimalRepresentation

public String determineDecimalRepresentation(String text,
                                             int type)