Module pro.eng.yui.YuiFramework
Package pro.eng.yui.yuiframe.utils

Interface ICollectionUtil

public interface ICollectionUtil
Define common Collection operations
Since:
1.0.0
Version:
1.0.0
Author:
yui-KITAMURA

  • Method Details

    • toList

      @Contract("_ -> new") <T> List<T> toList(T... aryObj)
      Convert array to List
      Type Parameters:
      T - Type of parameters
      Parameters:
      aryObj - values array
      Returns:
      an List that contains all arguments
      See Also:

    • toArrayList

      @Contract("_ -> new") <T> ArrayList<T> toArrayList(T... aryObj)
      Convert array to ArrayList
      Type Parameters:
      T - Type of parameters
      Parameters:
      aryObj - values array
      Returns:
      an List that contains all arguments
      See Also:

    • isEmpty

      @Contract("null -> true; !null -> _;") boolean isEmpty(Object[] array)
      judge array is empty ( null or length is Zero )
      Parameters:
      array - target
      Returns:
      array is null or nothing in collection then true

    • isEmpty

      @Contract("null -> true; !null -> _;") boolean isEmpty(Collection<?> list)
      judge Collection is empty
      Parameters:
      list - target instance
      Returns:
      Collection is null or nothing in it then true

    • toString

      @Contract("null -> !null; _ -> new") String toString(Collection<?> collection)
      Format collection instance to following format. 
       [entity1.toString(), entity2.toString(), ...]
      For example, StringBuilder then like 
       [sb1sb1sb1, sb2sb2sb2]
      If the entity are the Collection,then call this method for recursively
      Parameters:
      collection - a collection instance that format to string
      Returns:
      single line string value

    • toString

      @Contract("null -> !null; _ -> new") String toString(Object[] array)
      Array version of toString(Collection)
      See Also:

    • toStrMeta

      @Contract("null -> !null; _ -> new") String toStrMeta(Collection<?> collection)
      Format collection instance to following format. 
       {size: 2, data: [entity1.toString(), entity2.toString()]}
      Parameters:
      collection - a collection instance that format to string
      Returns:
      single line string value

    • toStrMeta

      @Contract("null -> !null; _ -> new") String toStrMeta(Object[] array)
      Array version of toStrMeta(Collection)
      See Also:

    • toStringBr

      @Contract("null -> !null; _ -> new") String toStringBr(Collection<?> collection)
      Format collection instance to following format. 
       [
 entity1.toString(),
 entity2.toString(),
 ...
 ]
      For example, StringBuilder then like 
       [
 sb1sb1sb1,
 sb2sb2sb2
 ]
      If the entity are the Collection,then call this method for recursively
      Parameters:
      collection - a collection instance that format to string
      Returns:
      multiple line string value

    • toStringBr

      @Contract("null -> !null; _ -> new") String toStringBr(Object[] array)
      Array version of toStringBr(Collection)
      See Also:

    • toStrMetaBr

      @Contract("null -> !null; _ -> new") String toStrMetaBr(Collection<?> collection)
      Format collection instance to following format. 
       {
 size: 2,
 data: [
 entity1.toString(),
 entity2.toString()
 ]}
      Parameters:
      collection - a collection instance that format to string
      Returns:
      multiple line string value

    • toStrMetaBr

      @Contract("null -> !null; _ -> new") String toStrMetaBr(Object[] array)
      Array version of toStrMetaBr(Collection)
      See Also: