MetaDataMergeStrategyResolver (Crafter Core 4.0.0-rc1 API)

java.lang.Object
- org.craftercms.core.xml.mergers.impl.resolvers.MetaDataMergeStrategyResolver

All Implemented Interfaces:

DescriptorMergeStrategyResolver
```
public class MetaDataMergeStrategyResolver
extends Object
implements DescriptorMergeStrategyResolver
```
Resolves the DescriptorMergeStrategy to use for a given descriptor, based on the value of an element in the descriptor document.

Author:

Sumer Jabri, Alfonso Vasquez

Constructor Summary

Constructors
Constructor Description

MetaDataMergeStrategyResolver()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`DescriptorMergeStrategy`	`getStrategy(String descriptorUrl, org.dom4j.Document descriptorDom)`	Returns a `DescriptorMergeStrategy` for a given descriptor.
`void`	`setElementValueToStrategyMappings(Map<String,DescriptorMergeStrategy> elementValueToStrategyMappings)`
`void`	`setMergeStrategyElementXPathQuery(String mergeStrategyElementXPathQuery)`

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

- Constructor Detail
  - MetaDataMergeStrategyResolver
```
public MetaDataMergeStrategyResolver()
```
- Method Detail
  - setMergeStrategyElementXPathQuery
```
public void setMergeStrategyElementXPathQuery(String mergeStrategyElementXPathQuery)
```
  - setElementValueToStrategyMappings
```
public void setElementValueToStrategyMappings(Map<String,DescriptorMergeStrategy> elementValueToStrategyMappings)
```
  - getStrategy
```
public DescriptorMergeStrategy getStrategy(String descriptorUrl,
                                           org.dom4j.Document descriptorDom)
                                    throws XmlException
```
    Returns a DescriptorMergeStrategy for a given descriptor. The strategy chosen is the one defined in the descriptor document.
    
    Specified by:
    
    getStrategy in interface DescriptorMergeStrategyResolver
    
    Parameters:
    
    descriptorUrl - the URL that identifies the descriptor
    
    descriptorDom - the XML DOM of the descriptor
    
    Returns:
    
    the DescriptorMergeStrategy for the descriptor, or null if the DOM is null or if there's no element in the DOM that defines the merge strategy to use.
    
    Throws:
    
    XmlException - if the element value doesn't refer to an existing strategy