org.apache.commons.collections4.functors

Class InstantiateFactory<T>

  • All Implemented Interfaces:
    Factory<T> 

    public class InstantiateFactory<T>
extends Object
implements Factory<T>
    Factory implementation that creates a new object instance by reflection.

    WARNING: from v4.1 onwards this class will not be serializable anymore in order to prevent potential remote code execution exploits. Please refer to COLLECTIONS-580 for more details.

    Since:
    3.0

    • Constructor Detail

      • InstantiateFactory

        public InstantiateFactory(Class<T> classToInstantiate)
        Constructor that performs no validation. Use instantiateFactory if you want that.
        Parameters:
        classToInstantiate - the class to instantiate

      • InstantiateFactory

        public InstantiateFactory(Class<T> classToInstantiate,
                          Class<?>[] paramTypes,
                          Object[] args)
        Constructor that performs no validation. Use instantiateFactory if you want that.
        Parameters:
        classToInstantiate - the class to instantiate
        paramTypes - the constructor parameter types, cloned
        args - the constructor arguments, cloned

    • Method Detail

      • instantiateFactory

        public static <T> Factory<T> instantiateFactory(Class<T> classToInstantiate,
                                                Class<?>[] paramTypes,
                                                Object[] args)
        Factory method that performs validation.
        Type Parameters:
        T - the type the factory creates
        Parameters:
        classToInstantiate - the class to instantiate, not null
        paramTypes - the constructor parameter types, cloned
        args - the constructor arguments, cloned
        Returns:
        a new instantiate factory
        Throws:
        NullPointerException - if classToInstantiate is null
        IllegalArgumentException - if paramTypes does not match args

      • create

        public T create()
        Creates an object using the stored constructor.
        Specified by:
        create in interface  Factory<T>
        Returns:
        the new object