GraphPolicyRule (omero-server 5.7.0 API)

java.lang.Object
- ome.services.graphs.GraphPolicyRule

```
public class GraphPolicyRule
extends java.lang.Object
```
A graph policy rule specifies a component of a GraphPolicy. It is designed to be conveniently created using Spring by supplying configuration metadata to the bean container.

Since:

5.1.0

Constructor Summary

Constructors
Constructor Description

GraphPolicyRule()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static GraphPolicy`	`parseRules(GraphPathBean graphPathBean, java.util.Collection<GraphPolicyRule> rules)`	Convert the text-based rules as specified in the configuration metadata into a policy applicable in model object graph traversal.
`void`	`setChanges(java.lang.String changes)`
`void`	`setError(java.lang.String message)`
`void`	`setMatches(java.lang.String matches)`
`java.lang.String`	`toString()`

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

- Constructor Detail
  - GraphPolicyRule
```
public GraphPolicyRule()
```
- Method Detail
  - setMatches
```
public void setMatches(java.lang.String matches)
```
    Parameters:
    
    matches - the match conditions for this policy rule, comma-separated
  - setChanges
```
public void setChanges(java.lang.String changes)
```
    Parameters:
    
    changes - the changes caused by this policy rule, comma-separated
  - setError
```
public void setError(java.lang.String message)
```
    Parameters:
    
    message - the error message triggered by this policy rule
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - parseRules
```
public static GraphPolicy parseRules(GraphPathBean graphPathBean,
                                     java.util.Collection<GraphPolicyRule> rules)
                              throws GraphException
```
    Convert the text-based rules as specified in the configuration metadata into a policy applicable in model object graph traversal. (A more advanced effort could construct an efficient decision tree, but that optimization may be premature.)
    
    Parameters:
    
    graphPathBean - the graph path bean
    
    rules - the rules to apply
    
    Returns:
    
    a policy for graph traversal by GraphTraversal
    
    Throws:
    
    GraphException - if the text-based rules could not be parsed