LastValueCache (Yamcs :: Core 5.3.2 API)

java.lang.Object
- org.yamcs.parameter.LastValueCache

```
public class LastValueCache
extends Object
```
Cache for the last known value of each parameter. thread safe

Constructor Summary

Constructors
Constructor Description

LastValueCache()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ParameterValue`	`getValue(Parameter p)`	Returns the latest known value for p or null if there is none.
`Collection<ParameterValue>`	`getValues()`	returns all the values from the cache
`ParameterValue`	`put(Parameter p, ParameterValue pv)`	Puts a new value in the map.
`int`	`size()`
`void`	`update(Collection<ParameterValue> params)`	Update the cache with all parameters.

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

- Constructor Detail
  - LastValueCache
```
public LastValueCache()
```
- Method Detail
  - getValue
```
public ParameterValue getValue(Parameter p)
```
    Returns the latest known value for p or null if there is none.
    
    Parameters:
    
    p -
    
    Returns:
  - put
```
public ParameterValue put(Parameter p,
                          ParameterValue pv)
```
    Puts a new value in the map.
    
    Parameters:
    
    p -
    
    pv -
    
    Returns:
    
    the previous value or null if there was none.
  - update
```
public void update(Collection<ParameterValue> params)
```
    Update the cache with all parameters.
    Note: This is not an atomic operation!
    
    Parameters:
    
    params -
  - size
```
public int size()
```
  - getValues
```
public Collection<ParameterValue> getValues()
```
    returns all the values from the cache
    
    Returns: