xyz.erupt.linq.util

类 Columns

java.lang.Object

xyz.erupt.linq.util.Columns

public class Columns
extends java.lang.Object

构造器概要

构造器

构造器和说明
Columns()

方法概要

限定符和类型	方法和说明
static <R> Column	all(java.lang.Class<R> r)
static <R,A> Column	avg(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	avg(SFunction<R,?> fun, java.lang.String alias)
static java.util.List<Column>	columnsUnfold(Column... columns)
static <A> Column	count(SFunction<A,?> alias)
static <R,A> Column	count(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	count(SFunction<R,?> fun, java.lang.String alias)
static Column	count(java.lang.String alias)
static <R,A> Column	countDistinct(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	countDistinct(SFunction<R,?> fun, java.lang.String alias)
static <R,A> Column	groupArray(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	groupArray(SFunction<R,?> fun, java.lang.String alias)
static <R> Column	groupByProcess(SFunction<R,?> fun, java.lang.String alias, java.util.function.BiFunction<Column,java.util.List<Row>,java.lang.Object> groupByProcess)
static <R,A> Column	max(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	max(SFunction<R,?> fun, java.lang.String alias)
static <R,A> Column	min(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	min(SFunction<R,?> fun, java.lang.String alias)
static Column	of(java.lang.reflect.Field field)
static <R> Column	of(SFunction<R,?> fun)
static <R,A> Column	of(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	of(SFunction<R,?> fun, java.lang.String alias)
static <A> Column	ofs(java.util.function.Function<Row,?> fun, SFunction<A,?> alias)
static Column	ofs(java.util.function.Function<Row,?> fun, java.lang.String alias)
static <R,S> Column	ofx(SFunction<R,S> fun, java.util.function.Function<S,java.lang.Object> convert)
static <R,S,A> Column	ofx(SFunction<R,S> fun, java.util.function.Function<S,java.lang.Object> convert, SFunction<A,?> alias)
static <R,S> Column	ofx(SFunction<R,S> fun, java.util.function.Function<S,java.lang.Object> convert, java.lang.String alias)
static <R,A> Column	sum(SFunction<R,?> fun, SFunction<A,?> alias)
static <R> Column	sum(SFunction<R,?> fun, java.lang.String alias)

从类继承的方法 java.lang.Object

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

构造器详细资料

Columns

public Columns()

方法详细资料

all

public static <R> Column all(java.lang.Class<R> r)

ofx

public static <R,S> Column ofx(SFunction<R,S> fun,
                               java.util.function.Function<S,java.lang.Object> convert,
                               java.lang.String alias)

ofx

public static <R,S,A> Column ofx(SFunction<R,S> fun,
                                 java.util.function.Function<S,java.lang.Object> convert,
                                 SFunction<A,?> alias)

ofx

public static <R,S> Column ofx(SFunction<R,S> fun,
                               java.util.function.Function<S,java.lang.Object> convert)

of

public static <R> Column of(SFunction<R,?> fun)

of

public static <R> Column of(SFunction<R,?> fun,
                            java.lang.String alias)

of

public static <R,A> Column of(SFunction<R,?> fun,
                              SFunction<A,?> alias)

of

public static Column of(java.lang.reflect.Field field)

ofs

public static Column ofs(java.util.function.Function<Row,?> fun,
                         java.lang.String alias)

ofs

public static <A> Column ofs(java.util.function.Function<Row,?> fun,
                             SFunction<A,?> alias)

count

public static Column count(java.lang.String alias)

count

public static <A> Column count(SFunction<A,?> alias)

count

public static <R> Column count(SFunction<R,?> fun,
                               java.lang.String alias)

count

public static <R,A> Column count(SFunction<R,?> fun,
                                 SFunction<A,?> alias)

countDistinct

public static <R> Column countDistinct(SFunction<R,?> fun,
                                       java.lang.String alias)

countDistinct

public static <R,A> Column countDistinct(SFunction<R,?> fun,
                                         SFunction<A,?> alias)

max

public static <R> Column max(SFunction<R,?> fun,
                             java.lang.String alias)

max

public static <R,A> Column max(SFunction<R,?> fun,
                               SFunction<A,?> alias)

min

public static <R> Column min(SFunction<R,?> fun,
                             java.lang.String alias)

min

public static <R,A> Column min(SFunction<R,?> fun,
                               SFunction<A,?> alias)

avg

public static <R> Column avg(SFunction<R,?> fun,
                             java.lang.String alias)

avg

public static <R,A> Column avg(SFunction<R,?> fun,
                               SFunction<A,?> alias)

sum

public static <R> Column sum(SFunction<R,?> fun,
                             java.lang.String alias)

sum

public static <R,A> Column sum(SFunction<R,?> fun,
                               SFunction<A,?> alias)

groupArray

public static <R> Column groupArray(SFunction<R,?> fun,
                                    java.lang.String alias)

groupArray

public static <R,A> Column groupArray(SFunction<R,?> fun,
                                      SFunction<A,?> alias)

groupByProcess

public static <R> Column groupByProcess(SFunction<R,?> fun,
                                        java.lang.String alias,
                                        java.util.function.BiFunction<Column,java.util.List<Row>,java.lang.Object> groupByProcess)

columnsUnfold

public static java.util.List<Column> columnsUnfold(Column... columns)