LiteralProcessor (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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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