勤劳的家庭，饥饿过其门而不入。——富兰克林
分享一个通过getter获取setter函数
放在：https://gitee.com/dromara/stream-query
代码语言：javascript复制/**
* 通过getter获取setter
*
* @param getter getter对应的lambda
* @param <T> getter参数类型
* @param <R> property类型
* @return 返回setter对应的lambda
*/
public static <T, R> SerBiCons<T, R> getSetter(SerFunc<T, R> getter) {
return getSetter(getter, SerBiCons.class);
}
/**
* 通过getter获取setter
*
* @param getter getter对应的lambda
* @param lambdaType setter对应的lambda类型
* @param <F> getter对应的lambda类型
* @param <C> setter对应的lambda类型
* @return 返回setter对应的lambda
*/
public static <F extends Serializable, C> C getSetter(F getter, Class<? super C> lambdaType) {
LambdaExecutable executable = LambdaHelper.resolve(getter);
Object setter = getSetter(executable.getClazz(), BeanHelper.getPropertyName(executable.getName()), lambdaType);
return SerFunc.<Object, C>cast().apply(setter);
}此处使用方式：
代码语言：javascript复制@Test
void testGetSetter() {
SerBiCons<LambdaExecutable, String> nameSetter = LambdaHelper.getSetter(LambdaExecutable.class, "name");
LambdaExecutable executable = new LambdaExecutable();
nameSetter.accept(executable, "kubernetes");
Assertions.assertEquals("kubernetes", executable.getName());
val lambda = LambdaHelper.getSetter(LambdaExecutable.class, "clazz", BiConsumer.class);
BiConsumer<LambdaExecutable, Class<?>> clazzSetter = SerFunc.<BiConsumer<?, ?>, BiConsumer<LambdaExecutable, Class<?>>>cast().apply(lambda);
clazzSetter.accept(executable, String.class);
Assertions.assertEquals(String.class, executable.getClazz());
clazzSetter = LambdaHelper.getSetter(LambdaExecutable::getClazz);
clazzSetter.accept(executable, Object.class);
Assertions.assertEquals(Object.class, executable.getClazz());
SerBiCons<LambdaExecutable, String> nameSerSetter = LambdaHelper
.<SerFunc<LambdaExecutable, String>, SerBiCons<LambdaExecutable, String>>
getSetter(LambdaExecutable::getName, SerBiCons.class);
nameSerSetter.accept(executable, "serializable");
Assertions.assertEquals("serializable", executable.getName());
}
