Weight (ONOS Java API (2.2.7))

All Superinterfaces:

java.lang.Comparable<Weight>

All Known Implementing Classes:

ScalarWeight
```
public interface Weight
extends java.lang.Comparable<Weight>
```
Abstraction of a graph edge weight.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isNegative()`	Returns true if the weight is negative (means that aggregated path cost will decrease if we add weighted subject to it).
`boolean`	`isViable()`	Returns true if the weighted subject (link/path) can be traversed; false otherwise.
`Weight`	`merge(Weight otherWeight)`	Merges the given weight with this one returning a new aggregated weight.
`Weight`	`subtract(Weight otherWeight)`	Subtracts the given weight from this one and produces a new weight.

Methods inherited from interface java.lang.Comparable
compareTo

- Method Detail
  - merge
```
Weight merge(Weight otherWeight)
```
    Merges the given weight with this one returning a new aggregated weight.
    
    Parameters:
    
    otherWeight - weight to add
    
    Returns:
    
    aggregated weight
  - subtract
```
Weight subtract(Weight otherWeight)
```
    Subtracts the given weight from this one and produces a new weight.
    
    Parameters:
    
    otherWeight - weight to subtract
    
    Returns:
    
    residual weight
  - isViable
```
boolean isViable()
```
    Returns true if the weighted subject (link/path) can be traversed; false otherwise.
    
    Returns:
    
    true if weight is adequate, false if weight is infinite
  - isNegative
```
boolean isNegative()
```
    Returns true if the weight is negative (means that aggregated path cost will decrease if we add weighted subject to it).
    
    Returns:
    
    true if the weight is negative, false otherwise