Pair (Alluxio Core - Common Utilities 295 API)

java.lang.Object
- alluxio.collections.Pair<T1,T2>

Type Parameters:

T1 - the first element of the Pair

T2 - the second element of the Pair

Direct Known Subclasses:

OperationId
```
@NotThreadSafe
public class Pair<T1,T2>
extends java.lang.Object
```
A pair representation defined by two elements (of type First and type Second).

Constructor Summary

Constructors
Constructor	Description
`Pair()`	Default constructor for deserialization.
`Pair(T1 first, T2 second)`	Constructs and initializes a Pair specified by the two input elements.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object o)`
`T1`	`getFirst()`
`T2`	`getSecond()`
`int`	`hashCode()`
`void`	`setFirst(T1 first)`	Set the first value.
`void`	`setSecond(T2 second)`	Set the second value.
`java.lang.String`	`toString()`

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

- Constructor Detail
  - Pair
```
public Pair(T1 first,
            T2 second)
```
    Constructs and initializes a Pair specified by the two input elements.
    
    Parameters:
    
    first - the first element of the pair (of type First)
    
    second - the second element of the pair (of type Second)
  - Pair
```
public Pair()
```
    Default constructor for deserialization.
- Method Detail
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - getFirst
```
public T1 getFirst()
```
    Returns:
    
    the first element of the pair
  - getSecond
```
public T2 getSecond()
```
    Returns:
    
    the second element of the pair
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - setFirst
```
public void setFirst(T1 first)
```
    Set the first value.
    
    Parameters:
    
    first - the value to be set
  - setSecond
```
public void setSecond(T2 second)
```
    Set the second value.
    
    Parameters:
    
    second - the value to be set
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object