Metric (PMD Core 6.23.0 API)

Type Parameters:

N - Type of nodes the metric can be computed on

All Known Implementing Classes:

AbstractMetric
```
public interface Metric<N extends Node>
```
Object computing a metric on a node. Metric objects are stateless, which means that instances of the same metric are all equal.

Since:

6.0.0

Author:

Clément Fournier

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`computeFor(N node, MetricOptions options)`	Actually computes the value of a metric for an AST node.
`boolean`	`supports(N node)`	Checks if the metric can be computed on the node.

- Method Detail
  - supports
```
boolean supports(N node)
```
    Checks if the metric can be computed on the node.
    
    Parameters:
    
    node - The node to check
    
    Returns:
    
    True if the metric can be computed
  - computeFor
```
double computeFor(N node,
                  MetricOptions options)
```
    Actually computes the value of a metric for an AST node.
    
    Parameters:
    
    node - The node
    
    options - The options of the metric
    
    Returns:
    
    The value of the metric, or Double.NaN if it could not be computed.