Package scriptella.util

Class CollectionUtils

java.lang.Object

scriptella.util.CollectionUtils

public final class CollectionUtils
extends Object

Collections utility methods.

Version:

1.0

Author:

Fyodor Kupolov

Method Summary

Modifier and Type	Method	Description
static Map<String,String>	asMap(Properties properties)	Returns parameterized version of Properties the instance remains the same.
static Properties	asProperties(Map<String,?> map)	Converts specified map to Properties.
static boolean	isEmpty(Collection<?> collection)	Null-safe utility method to check if collection is empty.
static <V> Map<String,V>	newCaseInsensitiveAsciiMap()	Create a map optimized for case insensitive search for keys.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

newCaseInsensitiveAsciiMap

public static <V> Map<String,V> newCaseInsensitiveAsciiMap()

Create a map optimized for case insensitive search for keys. The case insensitive rules are simplified to ASCII chars for performance reasons.

Returns:

case insensitive map.

asMap

public static Map<String,String> asMap(Properties properties)

Returns parameterized version of Properties the instance remains the same.

Parameters:

properties - properties to represent as a map.

asProperties

public static Properties asProperties(Map<String,?> map)

Converts specified map to Properties. The keys and String values are migrated unchnaged, other types of values are converted to String.

Parameters:

map - map to convert.

Returns:

converted map as Properties.

isEmpty

public static boolean isEmpty(Collection<?> collection)

Null-safe utility method to check if collection is empty.

Parameters:

collection - collection to check.

Returns:

true if collection is empty or null.