ParameterInfo

All Known Subinterfaces:

ParameterInfo

All Known Implementing Classes:

DefaultParameterInfo
```
@API(status=EXPERIMENTAL,
     since="5.14")
public interface ParameterInfo
```
ParameterInfo is used to provide information about the current invocation of a parameterized class or test.
Registered Extension implementations may retrieve the current ParameterInfo instance by calling ExtensionContext.getStore(Namespace) with NAMESPACE and Store.get(...) with KEY. Alternatively, the get(ExtensionContext) method may be used to retrieve the ParameterInfo instance for the supplied ExtensionContext. Extensions must not modify any entries in the Store for NAMESPACE.
When a @ParameterizedTest method is declared inside a @ParameterizedClass or a @Nested @ParameterizedClass is declared inside an enclosing @ParameterizedClass, there will be multiple ParameterInfo instances available on different levels of the ExtensionContext hierarchy. In such cases, please use ExtensionContext.getParent() to navigate to the right level before retrieving the ParameterInfo instance from the Store.

Since:

5.14

See Also:

ParameterizedClass, ParameterizedTest

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.Object`	`KEY`	The key for retrieving the `ParameterInfo` instance from the `Store`.
`static org.junit.jupiter.api.extension.ExtensionContext.Namespace`	`NAMESPACE`	The `ExtensionContext.Namespace` for accessing the `Store` for `ParameterInfo`.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static ParameterInfo`	`get(org.junit.jupiter.api.extension.ExtensionContext context)`	{@return the closest {@code ParameterInfo} instance for the supplied {@code ExtensionContext}; potentially {@code null}}
`ArgumentsAccessor`	`getArguments()`	{@return the accessor to the arguments of the current invocation}
`ParameterDeclarations`	`getDeclarations()`	{@return the declarations of all indexed parameters}

- Field Detail
  - NAMESPACE
```
static final org.junit.jupiter.api.extension.ExtensionContext.Namespace NAMESPACE
```
    The ExtensionContext.Namespace for accessing the Store for ParameterInfo.
  - KEY
```
static final java.lang.Object KEY
```
    The key for retrieving the ParameterInfo instance from the Store.
- Method Detail
  - get
```
static ParameterInfo get(org.junit.jupiter.api.extension.ExtensionContext context)
```
    {@return the closest {@code ParameterInfo} instance for the supplied {@code ExtensionContext}; potentially {@code null}}
  - getDeclarations
```
ParameterDeclarations getDeclarations()
```
    {@return the declarations of all indexed parameters}
  - getArguments
```
ArgumentsAccessor getArguments()
```
    {@return the accessor to the arguments of the current invocation}