CollectionUtil (orm base 2.3.1 API)

public final class CollectionUtil
extends Object

构造器
构造器和说明
`CollectionUtil()`

所有方法静态方法具体方法
限定符和类型	方法和说明
`static boolean`	`contains(Object[] arr, Object target)`
`static boolean`	`containsAny(Collection<?> c1, Collection<?> c2)`
`static Class<?>`	`getTypeFromObj(Object obj)` 获取类型的class对象如果是一个数组或者Collection，则尝试获取其中第一个元素的class
`static int`	`indexOf(Object[] arr, Object target)`
`static boolean`	`isEmpty(Collection<?> collection)`
`static boolean`	`isEmpty(Map<?,?> map)`
`static boolean`	`isEmpty(Object[] arr)`
`static boolean`	`isNotEmpty(Collection<?> collection)`
`static boolean`	`isNotEmpty(Map<?,?> map)`
`static boolean`	`isNotEmpty(Object[] arr)`
`static int`	`sizeOf(Object obj)`

public static boolean isEmpty(Collection<?> collection)

public static boolean isNotEmpty(Collection<?> collection)

public static boolean isEmpty(Object[] arr)

public static boolean isNotEmpty(Object[] arr)

public static boolean isEmpty(Map<?,?> map)

public static boolean isNotEmpty(Map<?,?> map)

public static boolean contains(Object[] arr,
                               Object target)

public static int indexOf(Object[] arr,
                          Object target)

public static boolean containsAny(Collection<?> c1,
                                  Collection<?> c2)

类 CollectionUtil