BaseMatcher (JUnit API 文档)

java.lang.Object
- org.hamcrest.BaseMatcher<T>

All Implemented Interfaces:
Matcher<T>, SelfDescribing
Direct Known Subclasses:
AnyOf, CustomMatcher, DescribedAs, DiagnosingMatcher, Is, IsAnything, IsEqual, IsNot, IsNull, IsSame, TypeSafeDiagnosingMatcher, TypeSafeMatcher
```
public abstract class BaseMatcher<T>
extends Object
implements Matcher<T>
```
BaseClass for all Matcher implementations.
See Also:
Matcher

Constructor Summary
Constructors
Constructor Description
BaseMatcher()

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`_dont_implement_Matcher___instead_extend_BaseMatcher_()`	Deprecated.
`void`	`describeMismatch(Object item, Description description)`	Generate a description of why the matcher has not accepted the item.
`String`	`toString()`

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

Methods inherited from interface org.hamcrest.Matcher
matches

Methods inherited from interface org.hamcrest.SelfDescribing
describeTo

- Constructor Detail
  - BaseMatcher
```
public BaseMatcher()
```
- Method Detail
  - _dont_implement_Matcher___instead_extend_BaseMatcher_
```
@Deprecated
public final void _dont_implement_Matcher___instead_extend_BaseMatcher_()
```
    Deprecated.
    Description copied from interface: Matcher
    This method simply acts a friendly reminder not to implement Matcher directly and instead extend BaseMatcher. It's easy to ignore JavaDoc, but a bit harder to ignore compile errors .
    Specified by:
    _dont_implement_Matcher___instead_extend_BaseMatcher_ in interface Matcher<T>
    See Also:
    Matcher._dont_implement_Matcher___instead_extend_BaseMatcher_()
  - describeMismatch
```
public void describeMismatch(Object item,
                             Description description)
```
    Description copied from interface: Matcher
    Generate a description of why the matcher has not accepted the item. The description will be part of a larger description of why a matching failed, so it should be concise. This method assumes that matches(item) is false, but will not check this.
    Specified by:
    describeMismatch in interface Matcher<T>
    Parameters:
    item - The item that the Matcher has rejected.
    description - The description to be built or appended to.
  - toString
```
public String toString()
```
    Overrides:
    toString in class Object