Package com.querydsl.core.types.dsl

Class ComparableExpressionBase<T extends Comparable>

java.lang.Object

com.querydsl.core.types.dsl.DslExpression<T>

com.querydsl.core.types.dsl.SimpleExpression<T>

com.querydsl.core.types.dsl.ComparableExpressionBase<T>

Type Parameters:

T - Java type

All Implemented Interfaces:

Expression<T>, Serializable

Direct Known Subclasses:

ComparableExpression, NumberExpression

public abstract class ComparableExpressionBase<T extends Comparable>
extends SimpleExpression<T>

ComparableExpressionBase represents comparable expressions

Author:

tiwe

See Also:

• Comparable
• Serialized Form

Field Summary

Fields inherited from class com.querydsl.core.types.dsl.DslExpression

hashCode, mixin

Constructor Summary

Constructors

Constructor	Description
ComparableExpressionBase(Expression<T> mixin)

Method Summary

Modifier and Type	Method	Description
OrderSpecifier<T>	asc()	Create an OrderSpecifier for ascending order of this expression
ComparableExpressionBase<T>	coalesce(Expression<?>... exprs)	Create a coalesce(this, exprs...) expression
ComparableExpressionBase<T>	coalesce(Expression<T> expr)	Create a coalesce(this, expr) expression
ComparableExpressionBase<T>	coalesce(T arg)	Create a coalesce(this, arg) expression
ComparableExpressionBase<T>	coalesce(T... args)	Create a coalesce(this, args...) expression
OrderSpecifier<T>	desc()	Create an OrderSpecifier for descending order of this expression
ComparableExpressionBase<T>	max()	Create a max(this) expression
ComparableExpressionBase<T>	min()	Create a min(this) expression
ComparableExpressionBase<T>	nullif(Expression<T> other)	Create a nullif(this, other) expression
ComparableExpressionBase<T>	nullif(T other)	Create a nullif(this, other) expression

Methods inherited from class com.querydsl.core.types.dsl.SimpleExpression

as, as, count, countDistinct, eq, eq, eqAll, eqAll, eqAny, eqAny, in, in, in, in, in, isNotNull, isNull, ne, ne, neAll, neAny, notIn, notIn, notIn, notIn, notIn, when, when

Methods inherited from class com.querydsl.core.types.dsl.DslExpression

equals, getType, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.querydsl.core.types.Expression

accept

Constructor Details

ComparableExpressionBase

public ComparableExpressionBase(Expression<T> mixin)

Method Details

asc

public OrderSpecifier<T> asc()

Create an OrderSpecifier for ascending order of this expression

Returns:

ascending order by this

coalesce

public ComparableExpressionBase<T> coalesce(Expression<T> expr)

Create a coalesce(this, expr) expression

Parameters:

expr - additional argument

Returns:

coalesce

coalesce

public ComparableExpressionBase<T> coalesce(Expression<?>... exprs)

Create a coalesce(this, exprs...) expression

Parameters:

exprs - additional arguments

Returns:

coalesce

coalesce

public ComparableExpressionBase<T> coalesce(T arg)

Create a coalesce(this, arg) expression

Parameters:

arg - additional argument

Returns:

coalesce

coalesce

public ComparableExpressionBase<T> coalesce(T... args)

Create a coalesce(this, args...) expression

Parameters:

args - additional arguments

Returns:

coalesce

nullif

public ComparableExpressionBase<T> nullif(Expression<T> other)

Create a nullif(this, other) expression

Overrides:

nullif in class SimpleExpression<T extends Comparable>

Parameters:

other -

Returns:

nullif(this, other)

nullif

public ComparableExpressionBase<T> nullif(T other)

Create a nullif(this, other) expression

Overrides:

nullif in class SimpleExpression<T extends Comparable>

Parameters:

other -

Returns:

nullif(this, other)

desc

public OrderSpecifier<T> desc()

Create an OrderSpecifier for descending order of this expression

Returns:

descending order by this

min

public ComparableExpressionBase<T> min()

Create a min(this) expression

Get the minimum value of this expression (aggregation)

Returns:

min(this)

max

public ComparableExpressionBase<T> max()

Create a max(this) expression

Get the maximum value of this expression (aggregation)

Returns:

max(this)