Package com.alibaba.ttl

Class TtlWrappers

java.lang.Object

com.alibaba.ttl.TtlWrappers

public final class TtlWrappers
extends Object

Util methods for TTL Wrapper: wrap common Functional Interface.

Note:

• all methods is null-safe, when input parameter is null, return null.
• all wrap method skip wrap (aka. just return input parameter), when input parameter is already wrapped.

Since:

2.11.4

Author:

Jerry Lee (oldratlee at gmail dot com), huangfei1101 (fei.hf at alibaba-inc dot com)

See Also:

• TtlRunnable
• TtlCallable
• TtlUnwrap
• TtlWrapper

Method Summary

Modifier and Type	Method	Description
static <T, U> BiConsumer<T,U>	wrap(BiConsumer<T,U> consumer)	Deprecated. overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapBiConsumer(BiConsumer) instead.
static <T, U, R> BiFunction<T,U,R>	wrap(BiFunction<T,U,R> fn)	Deprecated. overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapBiFunction(BiFunction) instead.
static <T> Consumer<T>	wrap(Consumer<T> consumer)	Deprecated. overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapConsumer(java.util.function.Consumer) instead.
static <T, R> Function<T,R>	wrap(Function<T,R> fn)	Deprecated. overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapFunction(Function) instead.
static <T> Supplier<T>	wrap(Supplier<T> supplier)	Deprecated. overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapSupplier(Supplier) instead.
static <T, U> BiConsumer<T,U>	wrapBiConsumer(BiConsumer<T,U> consumer)	wrap BiConsumer to TTL wrapper.
static <T, U, R> BiFunction<T,U,R>	wrapBiFunction(BiFunction<T,U,R> fn)	wrap BiFunction to TTL wrapper.
static <T> Consumer<T>	wrapConsumer(Consumer<T> consumer)	wrap Consumer to TTL wrapper.
static <T, R> Function<T,R>	wrapFunction(Function<T,R> fn)	wrap Function to TTL wrapper.
static <T> Supplier<T>	wrapSupplier(Supplier<T> supplier)	wrap Supplier to TTL wrapper.

Methods inherited from class java.lang.Object

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

Method Details

wrapSupplier

@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T> Supplier<T> wrapSupplier(@Nullable
 Supplier<T> supplier)

wrap Supplier to TTL wrapper.

Parameters:

supplier - input Supplier

Returns:

Wrapped Supplier

Since:

2.12.4

See Also:

• TtlUnwrap.unwrap(Object)

wrap

@Deprecated
@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T> Supplier<T> wrap(@Nullable
 Supplier<T> supplier)

Deprecated.

overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapSupplier(Supplier) instead.

wrap Supplier to TTL wrapper.

Parameters:

supplier - input Supplier

Returns:

Wrapped Supplier

Since:

2.11.4

See Also:

• TtlUnwrap.unwrap(Object)

wrapConsumer

@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T> Consumer<T> wrapConsumer(@Nullable
 Consumer<T> consumer)

wrap Consumer to TTL wrapper.

Parameters:

consumer - input Consumer

Returns:

Wrapped Consumer

Since:

2.12.4

See Also:

• TtlUnwrap.unwrap(Object)

wrap

@Deprecated
@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T> Consumer<T> wrap(@Nullable
 Consumer<T> consumer)

Deprecated.

overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapConsumer(java.util.function.Consumer) instead.

wrap Consumer to TTL wrapper.

Parameters:

consumer - input Consumer

Returns:

Wrapped Consumer

Since:

2.11.4

See Also:

• TtlUnwrap.unwrap(Object)

wrapBiConsumer

@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T,
U> BiConsumer<T,U> wrapBiConsumer(@Nullable
 BiConsumer<T,U> consumer)

wrap BiConsumer to TTL wrapper.

Parameters:

consumer - input BiConsumer

Returns:

Wrapped BiConsumer

Since:

2.12.4

See Also:

• TtlUnwrap.unwrap(Object)

wrap

@Deprecated
@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T,
U> BiConsumer<T,U> wrap(@Nullable
 BiConsumer<T,U> consumer)

Deprecated.

overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapBiConsumer(BiConsumer) instead.

wrap input BiConsumer to TTL wrapper.

Parameters:

consumer - input BiConsumer

Returns:

Wrapped BiConsumer

Since:

2.11.4

See Also:

• TtlUnwrap.unwrap(Object)

wrapFunction

@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T,
R> Function<T,R> wrapFunction(@Nullable
 Function<T,R> fn)

wrap Function to TTL wrapper.

Parameters:

fn - input Function

Returns:

Wrapped Function

Since:

2.12.4

See Also:

• TtlUnwrap.unwrap(Object)

wrap

@Deprecated
@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T,
R> Function<T,R> wrap(@Nullable
 Function<T,R> fn)

Deprecated.

overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapFunction(Function) instead.

wrap Function to TTL wrapper.

Parameters:

fn - input Function

Returns:

Wrapped Function

Since:

2.11.4

See Also:

• TtlUnwrap.unwrap(Object)

wrapBiFunction

@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T,
U,
R> BiFunction<T,U,R> wrapBiFunction(@Nullable
 BiFunction<T,U,R> fn)

wrap BiFunction to TTL wrapper.

Parameters:

fn - input BiFunction

Returns:

Wrapped BiFunction

Since:

2.12.4

See Also:

• TtlUnwrap.unwrap(Object)

wrap

@Deprecated
@Nullable
@Contract(value="null -> null; !null -> !null",
          pure=true)
public static <T,
U,
R> BiFunction<T,U,R> wrap(@Nullable
 BiFunction<T,U,R> fn)

Deprecated.

overload methods using the same name wrap is not readable and have the type inference problems in some case; so use wrapBiFunction(BiFunction) instead.

wrap BiFunction to TTL wrapper.

Parameters:

fn - input BiFunction

Returns:

Wrapped BiFunction

Since:

2.11.4

See Also:

• TtlUnwrap.unwrap(Object)