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

Class CastExpression

java.lang.Object

me.danwi.sqlex.core.query.expression.CastExpression

All Implemented Interfaces:

Expression

public class CastExpression
extends Object
implements Expression

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	CastExpression.Type

Constructor Summary

Constructors

Constructor	Description
CastExpression(Expression expression, CastExpression.Type type)
CastExpression(Expression expression, CastExpression.Type type, long length)
CastExpression(Expression expression, CastExpression.Type type, long precision, long scale)

Method Summary

Modifier and Type	Method	Description
String	toSQL()	表达式转换成SQL片段

Methods inherited from class java.lang.Object

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

Methods inherited from interface me.danwi.sqlex.core.query.expression.Expression

add, and, div, eq, gt, gte, in, isNotNull, isNull, like, lt, lte, mul, ne, notIn, notLike, or, sub

Constructor Details

CastExpression

public CastExpression(Expression expression,
 CastExpression.Type type)

CastExpression

public CastExpression(Expression expression,
 CastExpression.Type type,
 long length)

CastExpression

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

Method Details

toSQL

public String toSQL()

Description copied from interface: Expression

表达式转换成SQL片段

Specified by:

toSQL in interface Expression

Returns:

SQL判断