io.debezium.util

Class Collect

java.lang.Object

io.debezium.util.Collect

public class Collect
extends Object

A set of utilities for more easily creating various kinds of collections.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Collect()

Method Summary

Modifier and Type	Method and Description
static <T> List<T>	arrayListOf(Iterable<T> values)
static <T> List<T>	arrayListOf(T[] values)
static <T> List<T>	arrayListOf(T first, T... additional)
static <K,V> Map<K,V>	fixedSizeMap(int maximumNumberOfEntries) Create a fixed sized Map that removes the least-recently used entry when the map becomes too large.
static <K,V> Map<K,V>	hashMapOf(K key, V value)
static <K,V> Map<K,V>	hashMapOf(K key1, V value1, K key2, V value2)
static <K,V> Map<K,V>	hashMapOf(K key1, V value1, K key2, V value2, K key3, V value3)
static <K,V> Map<K,V>	hashMapOf(K key1, V value1, K key2, V value2, K key3, V value3, K key4, V value4)
static <K,V> Map<K,V>	hashMapOf(K key1, V value1, K key2, V value2, K key3, V value3, K key4, V value4, K key5, V value5)
static <K,V> Map<K,V>	hashMapOf(K key1, V value1, K key2, V value2, K key3, V value3, K key4, V value4, K key5, V value5, K key6, V value6)
static <K,V> Map<K,V>	linkMapOf(K key, V value)
static <K,V> Map<K,V>	linkMapOf(K key1, V value1, K key2, V value2)
static <K,V> Map<K,V>	linkMapOf(K key1, V value1, K key2, V value2, K key3, V value3)
static <K,V> Map<K,V>	linkMapOf(K key1, V value1, K key2, V value2, K key3, V value3, K key4, V value4)
static <K,V> Map<K,V>	mapOf(K key, V value)
static Properties	propertiesOf(String key, String value)
static Properties	propertiesOf(String key1, String value1, String key2, String value2)
static Properties	propertiesOf(String key1, String value1, String key2, String value2, String key3, String value3)
static Properties	propertiesOf(String key1, String value1, String key2, String value2, String key3, String value3, String key4, String value4)
static Properties	propertiesOf(String key1, String value1, String key2, String value2, String key3, String value3, String key4, String value4, String key5, String value5)
static Properties	propertiesOf(String key1, String value1, String key2, String value2, String key3, String value3, String key4, String value4, String key5, String value5, String key6, String value6)
static <T> void	set(List<T> list, int index, T value, T defaultValue) Set the value at the given position in the list, expanding the list as required to accommodate the new position.
static <T> Set<T>	unmodifiableSet(Collection<T> values)
static <T,V> Set<T>	unmodifiableSet(Function<V,T> extractor, Collection<V> values)
static <T,V> Set<T>	unmodifiableSet(Function<V,T> extractor, V... values)
static <T> Set<T>	unmodifiableSet(Iterator<T> values)
static <T> Set<T>	unmodifiableSet(Set<T> values)
static <T> Set<T>	unmodifiableSet(Set<T> values, T... additionalValues)
static <T> Set<T>	unmodifiableSet(T... values)

Methods inherited from class java.lang.Object

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

Constructor Detail

Collect

private Collect()

Method Detail

fixedSizeMap

public static <K,V> Map<K,V> fixedSizeMap(int maximumNumberOfEntries)

Create a fixed sized Map that removes the least-recently used entry when the map becomes too large. The supplied maximumNumberOfEntries should be a power of 2 to efficiently make efficient use of memory. If not, the resulting map will be able to contain no more than maximumNumberOfEntries entries, but the underlying map will have a capacity that is the next power of larger than the supplied maximumNumberOfEntries value so that it can hold the required number of entries.

Parameters:

maximumNumberOfEntries - the maximum number of entries allowed in the map; should be a power of 2

Returns:

the map that is limited in size by the specified number of entries; never null

unmodifiableSet

public static <T,V> Set<T> unmodifiableSet(Function<V,T> extractor,
                                           V... values)

unmodifiableSet

public static <T,V> Set<T> unmodifiableSet(Function<V,T> extractor,
                                           Collection<V> values)

unmodifiableSet

public static <T> Set<T> unmodifiableSet(Set<T> values,
                                         T... additionalValues)

unmodifiableSet

public static <T> Set<T> unmodifiableSet(T... values)

unmodifiableSet

public static <T> Set<T> unmodifiableSet(Collection<T> values)

unmodifiableSet

public static <T> Set<T> unmodifiableSet(Set<T> values)

unmodifiableSet

public static <T> Set<T> unmodifiableSet(Iterator<T> values)

arrayListOf

public static <T> List<T> arrayListOf(T[] values)

arrayListOf

public static <T> List<T> arrayListOf(T first,
                                      T... additional)

arrayListOf

public static <T> List<T> arrayListOf(Iterable<T> values)

mapOf

public static <K,V> Map<K,V> mapOf(K key,
                                   V value)

hashMapOf

public static <K,V> Map<K,V> hashMapOf(K key,
                                       V value)

hashMapOf

public static <K,V> Map<K,V> hashMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2)

hashMapOf

public static <K,V> Map<K,V> hashMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2,
                                       K key3,
                                       V value3)

hashMapOf

public static <K,V> Map<K,V> hashMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2,
                                       K key3,
                                       V value3,
                                       K key4,
                                       V value4)

hashMapOf

public static <K,V> Map<K,V> hashMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2,
                                       K key3,
                                       V value3,
                                       K key4,
                                       V value4,
                                       K key5,
                                       V value5)

hashMapOf

public static <K,V> Map<K,V> hashMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2,
                                       K key3,
                                       V value3,
                                       K key4,
                                       V value4,
                                       K key5,
                                       V value5,
                                       K key6,
                                       V value6)

linkMapOf

public static <K,V> Map<K,V> linkMapOf(K key,
                                       V value)

linkMapOf

public static <K,V> Map<K,V> linkMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2)

linkMapOf

public static <K,V> Map<K,V> linkMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2,
                                       K key3,
                                       V value3)

linkMapOf

public static <K,V> Map<K,V> linkMapOf(K key1,
                                       V value1,
                                       K key2,
                                       V value2,
                                       K key3,
                                       V value3,
                                       K key4,
                                       V value4)

propertiesOf

public static Properties propertiesOf(String key,
                                      String value)

propertiesOf

public static Properties propertiesOf(String key1,
                                      String value1,
                                      String key2,
                                      String value2)

propertiesOf

public static Properties propertiesOf(String key1,
                                      String value1,
                                      String key2,
                                      String value2,
                                      String key3,
                                      String value3)

propertiesOf

public static Properties propertiesOf(String key1,
                                      String value1,
                                      String key2,
                                      String value2,
                                      String key3,
                                      String value3,
                                      String key4,
                                      String value4)

propertiesOf

public static Properties propertiesOf(String key1,
                                      String value1,
                                      String key2,
                                      String value2,
                                      String key3,
                                      String value3,
                                      String key4,
                                      String value4,
                                      String key5,
                                      String value5)

propertiesOf

public static Properties propertiesOf(String key1,
                                      String value1,
                                      String key2,
                                      String value2,
                                      String key3,
                                      String value3,
                                      String key4,
                                      String value4,
                                      String key5,
                                      String value5,
                                      String key6,
                                      String value6)

set

public static <T> void set(List<T> list,
                           int index,
                           T value,
                           T defaultValue)

Set the value at the given position in the list, expanding the list as required to accommodate the new position.

This is not a thread-safe operation

Parameters:

list - the list to be modified

index - the index position of the new value

value - the value

defaultValue - the value used for intermediate positions when expanding the list; may be null