KeyDescriptor (hybris Commerce Suite 2011)

All Known Implementing Classes:

ItemKeyDescriptor
```
public interface KeyDescriptor
```
Descriptor of an IntegrationObjectItemModel key. Each integration object item must have at least one (a simple key) or several (composite key) attributes, which identify instances of the item type and therefore define its key.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`KeyValue`	`calculateKey(java.util.Map<java.lang.String,java.lang.Object> item)`	Calculates key value for the specified data item.
`java.util.List<KeyAttribute>`	`getKeyAttributes()`	Finds all key attributes for the descriptor, including key attributes for the descriptor and all of its referenced key attributes
`boolean`	`isKeyAttribute(java.lang.String attr)`	Queries whether the specified attribute name is a name of the key attribute.

- Method Detail
  - calculateKey
```
KeyValue calculateKey(java.util.Map<java.lang.String,java.lang.Object> item)
```
    Calculates key value for the specified data item.
    
    Parameters:
    
    item - Map presentation of a data item, for which the key value needs to be calculated.
    
    Returns:
    
    the calculated key value.
  - isKeyAttribute
```
boolean isKeyAttribute(java.lang.String attr)
```
    Queries whether the specified attribute name is a name of the key attribute.
    
    Parameters:
    
    attr - name of the attribute to enquire about
    
    Returns:
    
    true, if the specified attribute is a key attribute in this key descriptor; false otherwise.
  - getKeyAttributes
```
java.util.List<KeyAttribute> getKeyAttributes()
```
    Finds all key attributes for the descriptor, including key attributes for the descriptor and all of its referenced key attributes
    
    Returns:
    
    a list of key attributes