AbstractWrapper (OpenNMS 29.0.8 API)

java.lang.Object
- org.opennms.netmgt.poller.jmx.wrappers.AbstractWrapper

Direct Known Subclasses:

CompositeDataWrapper, ObjectNameWrapper, TabularDataWrapper
```
public abstract class AbstractWrapper
extends Object
```
Base class for all wrappers used to evaluate MBean attributes in JEXL expressions.

Field Summary

Fields
Modifier and Type Field Description

protected MBeanServerConnection connection
The connection to the MBean server.

Constructor Summary

Constructors
Constructor Description

AbstractWrapper(MBeanServerConnection connection)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract Object`	`get(String name)`	Get the value of the requested attribute.
`protected Object`	`wrap(Object result)`	Helper to wrap an arbitary result in a wrapper if required.

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

- Field Detail
  - connection
```
protected final MBeanServerConnection connection
```
    The connection to the MBean server.
- Constructor Detail
  - AbstractWrapper
```
public AbstractWrapper(MBeanServerConnection connection)
```
- Method Detail
  - get
```
public abstract Object get(String name)
```
    Get the value of the requested attribute. Implementors should wrap the result using the wrap(Object) method.
    
    Parameters:
    
    name - the name of the requested attribute
    
    Returns:
    
    the value
  - wrap
```
protected Object wrap(Object result)
```
    Helper to wrap an arbitary result in a wrapper if required.
    
    Parameters:
    
    result - the result to wrap
    
    Returns:
    
    a wrapper or the result itself