SerializableMatcherDescription

java.lang.Object
- org.hamcrest.BaseMatcher<T>
- - org.junit.internal.SerializableMatcherDescription<T>

All Implemented Interfaces:

java.io.Serializable, org.hamcrest.Matcher<T>, org.hamcrest.SelfDescribing
```
class SerializableMatcherDescription<T>
extends org.hamcrest.BaseMatcher<T>
implements java.io.Serializable
```
This class exists solely to provide a serializable description of a matcher to be serialized as a field in AssumptionViolatedException. Being a Throwable, it is required to be Serializable, but most implementations of Matcher are not. This class works around that limitation as AssumptionViolatedException only every uses the description of the Matcher, while still retaining backwards compatibility with classes compiled against its class signature before 4.14 and/or deserialization of previously serialized instances.

Field Summary

Fields
Modifier and Type Field Description

private java.lang.String matcherDescription

Constructor Summary

Constructors
Modifier Constructor Description

private SerializableMatcherDescription(org.hamcrest.Matcher<T> matcher)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) static <T> org.hamcrest.Matcher<T>`	`asSerializableMatcher(org.hamcrest.Matcher<T> matcher)`	Factory method that checks to see if the matcher is already serializable.
`void`	`describeTo(org.hamcrest.Description description)`
`boolean`	`matches(java.lang.Object o)`

Methods inherited from class org.hamcrest.BaseMatcher
_dont_implement_Matcher___instead_extend_BaseMatcher_, describeMismatch, isNotNull, toString

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

- Field Detail
  - matcherDescription
```
private final java.lang.String matcherDescription
```
- Constructor Detail
  - SerializableMatcherDescription
```
private SerializableMatcherDescription(org.hamcrest.Matcher<T> matcher)
```
- Method Detail
  - matches
```
public boolean matches(java.lang.Object o)
```
    Specified by:
    
    matches in interface org.hamcrest.Matcher<T>
  - describeTo
```
public void describeTo(org.hamcrest.Description description)
```
    Specified by:
    
    describeTo in interface org.hamcrest.SelfDescribing
  - asSerializableMatcher
```
static <T> org.hamcrest.Matcher<T> asSerializableMatcher(org.hamcrest.Matcher<T> matcher)
```
    Factory method that checks to see if the matcher is already serializable.
    
    Parameters:
    
    matcher - the matcher to make serializable
    
    Returns:
    
    The provided matcher if it is null or already serializable, the SerializableMatcherDescription representation of it if it is not.