org.hibernate.dialect.function (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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Package org.hibernate.dialect.function

A framework for defining database-specific SQL functions that are available via the dialect.

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Description

Interface Summary

SQLFunction Provides support routines for the HQL functions as used in the various SQL Dialects Provides an interface for supporting various HQL functions that are translated to SQL.

Class Summary

AnsiTrimEmulationFunction A SQLFunction implementation that emulates the ANSI SQL trim function on dialects which do not support the full definition.

CastFunction ANSI-SQL style cast(foo as type) where the type is a Hibernate type

CharIndexFunction Emulation of locate() on Sybase

ClassicAvgFunction Classic AVG sqlfunction that return types as it was done in Hibernate 3.1

ClassicCountFunction Classic COUNT sqlfunction that return types as it was done in Hibernate 3.1

ClassicSumFunction Classic SUM sqlfunction that return types as it was done in Hibernate 3.1

ConditionalParenthesisFunction Essentially the same as StandardSQLFunction, except that here the parentheses are not included when no arguments are given.

ConvertFunction A Caché defintion of a convert function.

NoArgSQLFunction A function which takes no arguments

NvlFunction Emulation of coalesce() on Oracle, using multiple nvl() calls

PositionSubstringFunction Emulation of locate() on PostgreSQL

SQLFunctionRegistry

SQLFunctionTemplate Represents HQL functions that can have different representations in different SQL dialects.

StandardJDBCEscapeFunction Analogous to StandardSQLFunction except that standard JDBC escape sequences (i.e.

StandardSQLFunction Provides a standard implementation that supports the majority of the HQL functions that are translated to SQL.

VarArgsSQLFunction Support for slightly more general templating than StandardSQLFunction, with an unlimited number of arguments.

Package org.hibernate.dialect.function Description