Package io.microsphere.reflect

Class ConstructorUtils

  • All Implemented Interfaces:
    Utils
    public abstract class ConstructorUtils
extends java.lang.Object
implements Utils
    The utilities class of Constructor
    Since:
    1.0.0
    Author:
    Mercy

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.reflect.Constructor NOT_FOUND_CONSTRUCTOR  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static <T> java.lang.reflect.Constructor<T> findConstructor​(java.lang.Class<T> type, java.lang.Class<?>... parameterTypes)  
      static java.util.List<java.lang.reflect.Constructor<?>> findConstructors​(java.lang.Class<?> type, java.util.function.Predicate<? super java.lang.reflect.Constructor<?>>... constructorFilters)  
      static java.util.List<java.lang.reflect.Constructor<?>> findDeclaredConstructors​(java.lang.Class<?> type, java.util.function.Predicate<? super java.lang.reflect.Constructor<?>>... constructorFilters)  
      static <T> java.lang.reflect.Constructor<T> getConstructor​(java.lang.Class<T> type, java.lang.Class<?>... parameterTypes)  
      static <T> java.lang.reflect.Constructor<T> getDeclaredConstructor​(java.lang.Class<T> type, java.lang.Class<?>... parameterTypes)  
      static boolean hasNonPrivateConstructorWithoutParameters​(java.lang.Class<?> type)  
      static boolean isNonPrivateConstructorWithoutParameters​(java.lang.reflect.Constructor<?> constructor)
      Is a non-private constructor without parameters
      static <T> T newInstance​(java.lang.reflect.Constructor<T> constructor, java.lang.Object... args)
      Create an instance by the specified Constructor and arguments

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • NOT_FOUND_CONSTRUCTOR

        public static final java.lang.reflect.Constructor NOT_FOUND_CONSTRUCTOR

    • Method Detail

      • isNonPrivateConstructorWithoutParameters

        public static boolean isNonPrivateConstructorWithoutParameters​(java.lang.reflect.Constructor<?> constructor)
        Is a non-private constructor without parameters
        Parameters:
        constructor - Constructor
        Returns:
        true if the given Constructor is a public no-arg one, otherwise false

      • hasNonPrivateConstructorWithoutParameters

        public static boolean hasNonPrivateConstructorWithoutParameters​(java.lang.Class<?> type)

      • findConstructors

        public static java.util.List<java.lang.reflect.Constructor<?>> findConstructors​(java.lang.Class<?> type,
                                                                                java.util.function.Predicate<? super java.lang.reflect.Constructor<?>>... constructorFilters)

      • findDeclaredConstructors

        public static java.util.List<java.lang.reflect.Constructor<?>> findDeclaredConstructors​(java.lang.Class<?> type,
                                                                                        java.util.function.Predicate<? super java.lang.reflect.Constructor<?>>... constructorFilters)

      • getConstructor

        public static <T> java.lang.reflect.Constructor<T> getConstructor​(java.lang.Class<T> type,
                                                                  java.lang.Class<?>... parameterTypes)

      • getDeclaredConstructor

        public static <T> java.lang.reflect.Constructor<T> getDeclaredConstructor​(java.lang.Class<T> type,
                                                                          java.lang.Class<?>... parameterTypes)

      • findConstructor

        public static <T> java.lang.reflect.Constructor<T> findConstructor​(java.lang.Class<T> type,
                                                                   java.lang.Class<?>... parameterTypes)

      • newInstance

        public static <T> T newInstance​(java.lang.reflect.Constructor<T> constructor,
                                java.lang.Object... args)
        Create an instance by the specified Constructor and arguments
        Type Parameters:
        T - the type of instance
        Parameters:
        constructor - Constructor
        args - the Constructors arguments
        Returns:
        non-null