OneOrMore (uk.gov.gchq.gaffer:gaffer2 2.2.0 API)

java.lang.Object
- uk.gov.gchq.gaffer.commonutil.OneOrMore<T>

Type Parameters:

T - the iterable type.

All Implemented Interfaces:

Iterable<T>
```
public class OneOrMore<T>
extends Object
implements Iterable<T>
```
A OneOrMore in an Iterable that allows items to be added. It wraps an ArrayList or HashSet depending on whether deduplication is enabled. This class is designed to be used in the case when the iterable quite often just contains a single item. In the case only a single item is required, the class doesn't instantiate the Collection it just holds onto the single item. If additional items are added then a new backing collection is created to hold the multiple values.

Constructor Summary

Constructors
Constructor Description

OneOrMore()

OneOrMore(boolean deduplicate)

OneOrMore(boolean deduplicate, T item)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`add(T item)`
`boolean`	`addAll(Collection<? extends T> items)`
`boolean`	`contains(Object o)`
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`boolean`	`isEmpty()`
`Iterator<T>`	`iterator()`
`void`	`removeAnyItem()`
`int`	`size()`
`String`	`toString()`

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable
forEach, spliterator

Constructor Detail

OneOrMore
```
public OneOrMore()
```

OneOrMore

public OneOrMore(boolean deduplicate)

OneOrMore

public OneOrMore(boolean deduplicate,
                 T item)

Method Detail

add
```
public boolean add(T item)
```

addAll

public boolean addAll(Collection<? extends T> items)

removeAnyItem
```
public void removeAnyItem()
```

size
```
public int size()
```

isEmpty
```
public boolean isEmpty()
```

contains
```
public boolean contains(Object o)
```

iterator
```
public Iterator<T> iterator()
```
Specified by:

iterator in interface Iterable<T>

equals
```
public boolean equals(Object obj)
```
Overrides:

equals in class Object

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

toString
```
public String toString()
```
Overrides:

toString in class Object