Package com.linkare.commons.utils

Class CollectionUtils

  • public class CollectionUtils
extends Object

    • Constructor Summary

      Constructors 
      Constructor Description
      CollectionUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static org.apache.commons.collections.Transformer getToStringTransformer()
      Transformer that converts any object in a String representation of itself, using the toString method of the object.
      static <F,​T>
      T[]      		 getTransformedArrayFromArray​(F[] list, org.apache.commons.collections.Transformer transformer, Class<T> clazz)
      Transform an array of objects from one type to an array of objects of another type, using a given transformer.
      static <F,​T>
      T[]      		 getTransformedArrayFromList​(List<F> list, org.apache.commons.collections.Transformer transformer, Class<T> clazz)
      Transform a list of objects from one type to an array of another type, using a given transformer.
      static <F,​T>
      List<T>      		 getTransformedListFromArray​(F[] list, org.apache.commons.collections.Transformer transformer, Class<T> clazz)
      Transform an array of objects from one type to a list of objects of another type, using a given transformer.
      static <F,​T>
      List<T>      		 getTransformedListFromList​(List<F> list, org.apache.commons.collections.Transformer transformer, Class<T> clazz)
      Transform a list of objects from one type to a list of objects of another type, using a given transformer.

    • Constructor Detail

      • CollectionUtils

        public CollectionUtils()

    • Method Detail

      • getTransformedArrayFromList

        public static <F,​T> T[] getTransformedArrayFromList​(List<F> list,
                                                          org.apache.commons.collections.Transformer transformer,
                                                          Class<T> clazz)
        Transform a list of objects from one type to an array of another type, using a given transformer.
        Type Parameters:
        F - Type from which the elements are converted.
        T - Type to which the elements will be converted.
        Parameters:
        list - List of elements to be converted.
        transformer - Transformer used to convert each element.
        clazz - Class to which the elements will be transformed.
        Returns:
        The array with all elements from the base list converted to the T type.

      • getTransformedListFromArray

        public static <F,​T> List<T> getTransformedListFromArray​(F[] list,
                                                              org.apache.commons.collections.Transformer transformer,
                                                              Class<T> clazz)
        Transform an array of objects from one type to a list of objects of another type, using a given transformer.
        Type Parameters:
        F - Type from which the elements are converted.
        T - Type to which the elements will be converted.
        Parameters:
        list - Array of elements to be converted.
        transformer - Transformer used to convert each element.
        clazzlist - Class to which the elements will be transformed.
        Returns:
        The list with all elements from the base array converted to the T type.

      • getTransformedArrayFromArray

        public static <F,​T> T[] getTransformedArrayFromArray​(F[] list,
                                                           org.apache.commons.collections.Transformer transformer,
                                                           Class<T> clazz)
        Transform an array of objects from one type to an array of objects of another type, using a given transformer.
        Type Parameters:
        F - Type from which the elements are converted.
        T - Type to which the elements will be converted.
        Parameters:
        list - Array of elements to be converted.
        transformer - Transformer used to convert each element.
        clazz - Class to which the elements will be transformed.
        Returns:
        The array with all elements from the base array converted to the T type.

      • getTransformedListFromList

        public static <F,​T> List<T> getTransformedListFromList​(List<F> list,
                                                             org.apache.commons.collections.Transformer transformer,
                                                             Class<T> clazz)
        Transform a list of objects from one type to a list of objects of another type, using a given transformer.
        Type Parameters:
        F - Type from which the elements are converted.
        T - Type to which the elements will be converted.
        Parameters:
        list - List of elements to be converted.
        transformer - Transformer used to convert each element.
        clazz - Class to which the elements will be transformed.
        Returns:
        The list with all elements from the base list converted to the T type.

      • getToStringTransformer

        public static org.apache.commons.collections.Transformer getToStringTransformer()
        Transformer that converts any object in a String representation of itself, using the toString method of the object.
        Returns: