Package me.danwi.sqlex.core.query.expression

Interface Expression

All Known Subinterfaces:

NotVariantExpression

All Known Implementing Classes:

BinaryExpression, CastExpression, Column, FunctionCallExpression, InExpression, IsNullExpression, LikeExpression, LiteralExpression, NotExpression, ParameterExpression, RawExpression, UnaryExpression

public interface Expression

Method Summary

Modifier and Type	Method	Description
default BinaryExpression	add(Expression right)
default BinaryExpression	and(Expression right)
static ParameterExpression	arg(Object value)
static CastExpression	cast(Expression expression, CastExpression.Type type)
static CastExpression	cast(Expression expression, CastExpression.Type type, long length)
static CastExpression	cast(Expression expression, CastExpression.Type type, long precision, long scale)
static FunctionCallExpression	concat(Expression... param)
static FunctionCallExpression	concatWs(LiteralExpression expression, Expression... param)
static FunctionCallExpression	currentTimestamp()
static FunctionCallExpression	dateFormat(Expression date, String format)
static FunctionCallExpression	dateFormat(Expression date, Expression format)
default BinaryExpression	div(Expression right)
default BinaryExpression	eq(Expression right)
static FunctionCallExpression	func(String name, Expression... args)
default BinaryExpression	gt(Expression right)
default BinaryExpression	gte(Expression right)
default InExpression	in(Iterable<Expression> set)
default NotExpression	isNotNull()
default IsNullExpression	isNull()
static Expression	joinByAnd(Iterable<Expression> expressions)	将表达式通过 or 联合起来
static Expression	joinByOr(Iterable<Expression> expressions)	将表达式通过 or 联合起来
default LikeExpression	like(Expression right)
static LiteralExpression	lit(Object value)
default BinaryExpression	lt(Expression right)
default BinaryExpression	lte(Expression right)
default BinaryExpression	mul(Expression right)
default BinaryExpression	ne(Expression right)
static NotExpression	not(Expression exp)
default NotExpression	notIn(Iterable<Expression> set)
default NotExpression	notLike(Expression right)
static FunctionCallExpression	now()
default BinaryExpression	or(Expression right)
static RawExpression	sql(String rawSQL)
default BinaryExpression	sub(Expression right)
String	toSQL()	表达式转换成SQL片段

Method Details

toSQL

String toSQL()

表达式转换成SQL片段

Returns:

SQL判断

arg

static ParameterExpression arg(Object value)

lit

static LiteralExpression lit(Object value)

cast

static CastExpression cast(Expression expression,
 CastExpression.Type type)

cast

static CastExpression cast(Expression expression,
 CastExpression.Type type,
 long length)

cast

static CastExpression cast(Expression expression,
 CastExpression.Type type,
 long precision,
 long scale)

func

static FunctionCallExpression func(String name,
 Expression... args)

sql

static RawExpression sql(String rawSQL)

not

static NotExpression not(Expression exp)

and

default BinaryExpression and(Expression right)

or

default BinaryExpression or(Expression right)

eq

default BinaryExpression eq(Expression right)

ne

default BinaryExpression ne(Expression right)

gt

default BinaryExpression gt(Expression right)

gte

default BinaryExpression gte(Expression right)

lt

default BinaryExpression lt(Expression right)

lte

default BinaryExpression lte(Expression right)

in

default InExpression in(Iterable<Expression> set)

notIn

default NotExpression notIn(Iterable<Expression> set)

like

default LikeExpression like(Expression right)

notLike

default NotExpression notLike(Expression right)

isNull

default IsNullExpression isNull()

isNotNull

default NotExpression isNotNull()

add

default BinaryExpression add(Expression right)

sub

default BinaryExpression sub(Expression right)

mul

default BinaryExpression mul(Expression right)

div

default BinaryExpression div(Expression right)

now

static FunctionCallExpression now()

currentTimestamp

static FunctionCallExpression currentTimestamp()

dateFormat

static FunctionCallExpression dateFormat(Expression date,
 Expression format)

dateFormat

static FunctionCallExpression dateFormat(Expression date,
 String format)

joinByAnd

static Expression joinByAnd(Iterable<Expression> expressions)

将表达式通过 or 联合起来

Parameters:

expressions - 表达式集合

Returns:

联合后的表达式, 如果集合为空, 则返回null

joinByOr

static Expression joinByOr(Iterable<Expression> expressions)

将表达式通过 or 联合起来

Parameters:

expressions - 表达式集合

Returns:

联合后的表达式, 如果集合为空, 则返回null

concat

static FunctionCallExpression concat(Expression... param)

concatWs

static FunctionCallExpression concatWs(LiteralExpression expression,
 Expression... param)