ListUtils

ListUtils

This is a utility class for List operations. It provides a method that allows to sort lists in place with reusable comparators. See SObjectStringFieldComparator for tests.

Group Shared Code

See SObjectStringFieldComparator

Methods

public static void sort(List<Object> objects, Comparator comparator)

sorts a list of objects using bubble sort algorithm and a comparator

Parameters

Param	Description
objects	a list of objects that will be sorted
comparator	an instance of the Comparator interface that describes the ordering logic used for sorting

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Classes

CompareException

Exception thrown when Comparator.compare fails

Inheritance

CompareException

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Interfaces

Comparator

interface that specifies how two objects should be compared for ordering

Methods

public Integer compare(Object o1, Object o2)

compares two objects

Returns

Type	Description
Integer	s 0 if objects are equal, 1 first object is 'greater' than the second or 2 otherwise.

Throws

Exception	Description
Throws	CompareException if an error occurs while comparing objects. For example, when comparing incompatible object types.

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