CollectionUtil (JTS Topology Suite 1.20.0 API)

java.lang.Object
- org.locationtech.jts.util.CollectionUtil

```
public class CollectionUtil
extends Object
```
Utilities for processing Collections.

Version:

1.7

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface CollectionUtil.Function

Constructor Summary

Constructors
Constructor Description

CollectionUtil()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`apply(Collection coll, CollectionUtil.Function func)`	Executes a function on each item in a Collection but does not accumulate the result
`static List`	`select(Collection collection, CollectionUtil.Function func)`	Executes a `CollectionUtil.Function` on each item in a Collection and collects all the entries for which the result of the function is equal to `Boolean` `true`.
`static List`	`transform(Collection coll, CollectionUtil.Function func)`	Executes a function on each item in a `Collection` and returns the results in a new `List`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CollectionUtil
```
public CollectionUtil()
```
- Method Detail
  - transform
```
public static List transform(Collection coll,
                             CollectionUtil.Function func)
```
    Executes a function on each item in a Collection and returns the results in a new List
    
    Parameters:
    
    coll - the collection to process
    
    func - the Function to execute
    
    Returns:
    
    a list of the transformed objects
  - apply
```
public static void apply(Collection coll,
                         CollectionUtil.Function func)
```
    Executes a function on each item in a Collection but does not accumulate the result
    
    Parameters:
    
    coll - the collection to process
    
    func - the Function to execute
  - select
```
public static List select(Collection collection,
                          CollectionUtil.Function func)
```
    Executes a CollectionUtil.Function on each item in a Collection and collects all the entries for which the result of the function is equal to Boolean true.
    
    Parameters:
    
    collection - the collection to process
    
    func - the Function to execute
    
    Returns:
    
    a list of objects for which the function was true