StorageDecorator (DMX 5.4-SNAPSHOT API)

java.lang.Object
- systems.dmx.core.impl.StorageDecorator

```
public class StorageDecorator
extends Object
```
A utility layer above storage implementation. - Adds fetch-single calls on top of fetch-multiple calls and performs sanity checks.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AssocModelImpl`	`fetchAssoc(String key, Object value)`	Retrieves a single assoc by exact value.
`TopicModelImpl`	`fetchTopic(String key, Object value)`	Retrieves a single topic by exact value (case-sensitive).
`TopicModelImpl`	`queryTopicFulltext(String key, Object value)`	Retrieves a single topic by fulltext search (case-insensitive).

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

- Method Detail
  - fetchTopic
```
public TopicModelImpl fetchTopic(String key,
                                 Object value)
```
    Retrieves a single topic by exact value (case-sensitive).
    
    Returns:
    
    The fetched topic, or null if no such topic exists.
    
    Throws:
    
    RuntimeException - if more than one topic exists.
  - queryTopicFulltext
```
public TopicModelImpl queryTopicFulltext(String key,
                                         Object value)
```
    Retrieves a single topic by fulltext search (case-insensitive).
    
    Returns:
    
    The fetched topic, or null if no such topic exists.
    
    Throws:
    
    RuntimeException - if more than one topic exists.
  - fetchAssoc
```
public AssocModelImpl fetchAssoc(String key,
                                 Object value)
```
    Retrieves a single assoc by exact value.
    
    Returns:
    
    The fetched assoc, or null if no such assoc exists.
    
    Throws:
    
    RuntimeException - if more than one assoc exists.