JacksonInject (jackson-annotations 2.9.0.pr4)

```
@Target(value={ANNOTATION_TYPE,METHOD,FIELD,PARAMETER})
@Retention(value=RUNTIME)
public @interface JacksonInject
```
Jackson-specific annotation used for indicating that value of annotated property will be "injected", i.e. set based on value configured by ObjectMapper (usually on per-call basis). Usually property is not deserialized from JSON, although it possible to have injected value as default and still allow optional override from JSON.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element and Description
`OptBoolean`	`useInput` Whether matching input value is used for annotated property or not; if disabled (`OptBoolean.FALSE`), input value (if any) will be ignored; otherwise it will override injected value.
`String`	`value` Logical id of the value to inject; if not specified (or specified as empty String), will use id based on declared type of property.

- Element Detail
  - value
```
public abstract String value
```
    Logical id of the value to inject; if not specified (or specified as empty String), will use id based on declared type of property.
    
    Default:
    
    ""
  - useInput
```
public abstract OptBoolean useInput
```
    Whether matching input value is used for annotated property or not; if disabled (`OptBoolean.FALSE`), input value (if any) will be ignored; otherwise it will override injected value.
    Default is `OptBoolean.DEFAULT`, which translates to `OptBoolean.TRUE`: this is for backwards compatibility (2.8 and earlier always allow binding input value).
    
    Since:
    
    2.9
    
    Default:
    
    com.fasterxml.jackson.annotation.OptBoolean.DEFAULT

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