DefaultKeyGenerator (Spring Framework 4.3.30.RELEASE API)

java.lang.Object
- org.springframework.cache.interceptor.DefaultKeyGenerator

All Implemented Interfaces:
KeyGenerator
```
@Deprecated
public class DefaultKeyGenerator
extends Object
implements KeyGenerator
```
Deprecated.
as of Spring 4.0, in favor of SimpleKeyGenerator or custom KeyGenerator implementations based on hash codes
Default key generator. Returns 0 if no parameters are provided, the parameter itself if only one is given or a hash code computed from all given parameters' hash code values. Uses the constant value 53 for any null parameters given.
NOTE: As this implementation returns only a hash of the parameters it is possible for key collisions to occur. Since Spring 4.0 the SimpleKeyGenerator is used when no explicit key generator has been defined. This class remains for applications that do not wish to migrate to the SimpleKeyGenerator.
Since:
3.1
Author:
Costin Leau, Chris Beams, Juergen Hoeller

Field Summary
Fields
Modifier and Type Field Description
static int NO_PARAM_KEY
Deprecated.

static int NULL_PARAM_KEY
Deprecated.

Constructor Summary
Constructors
Constructor Description
DefaultKeyGenerator()
Deprecated.

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`Object`	`generate(Object target, Method method, Object... params)`	Deprecated. Generate a key for the given method and its parameters.

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

- Field Detail
  - NO_PARAM_KEY
```
public static final int NO_PARAM_KEY
```
    Deprecated.
    See Also:
    Constant Field Values
  - NULL_PARAM_KEY
```
public static final int NULL_PARAM_KEY
```
    Deprecated.
    See Also:
    Constant Field Values
- Constructor Detail
  - DefaultKeyGenerator
```
public DefaultKeyGenerator()
```
    Deprecated.
- Method Detail
  - generate
```
public Object generate(Object target,
                       Method method,
                       Object... params)
```
    Deprecated.
    Description copied from interface: KeyGenerator
    Generate a key for the given method and its parameters.
    Specified by:
    generate in interface KeyGenerator
    Parameters:
    target - the target instance
    method - the method being called
    params - the method parameters (with any var-args expanded)
    Returns:
    a generated key