Object
- FeatureChainedAttributeDescriptor

Enclosing class:

FeatureChainedAttributeVisitor
```
public static class FeatureChainedAttributeVisitor.FeatureChainedAttributeDescriptor
extends Object
```
Descriptor class holding information about a feature chained attribute, i.e. an attribute belonging to a feature type that is linked to a root feature type via feature chaining.
In more detail, purpose of this class is to store:
1. the sequence of nested attribute mappings describing how from top to bottom in the feature types chain
2. the path of the attribute, relative to the last linked feature type in the chain (except when the last chaining is done by reference, in which case the path refers to the second last feature type)
Author:

Stefano Costa, GeoSolutions

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addLink(FeatureChainedAttributeVisitor.FeatureChainLink chainLink)`	Adds a new link in the feature types chain.
`int`	`chainSize()`	Gets the size of the feature types chain.
`XPathUtil.StepList`	`getAttributePath()`	Gets the path of the feature chained attribute.
`List<FeatureChainedAttributeVisitor.FeatureChainLink>`	`getFeatureChain()`	Returns the list of links in the feature types chain.
`FeatureTypeMapping`	`getFeatureTypeOwningAttribute()`	Returns the feature type where the mapping configuration of the nested attribute is defined.
`FeatureChainedAttributeVisitor.FeatureChainLink`	`getFirstLink()`	Gets the first link in the feature types chain.
`FeatureChainedAttributeVisitor.FeatureChainLink`	`getLastLink()`	Gets the last link in the feature types chain.
`FeatureChainedAttributeVisitor.FeatureChainLink`	`getLink(int linkIdx)`	Gets a link in the feature types chain by its index.
`boolean`	`isJoiningEnabled()`	Checks whether all nested attribute mappings are instances of `JoiningNestedAttributeMapping`.
`void`	`setAttributePath(XPathUtil.StepList attributePath)`	Sets the path of the feature chained attribute.
`FeatureChainedAttributeVisitor.FeatureChainedAttributeDescriptor`	`shallowCopy()`	Perform a shallow copy of this `FeatureChainedAttributeVisitor.FeatureChainedAttributeDescriptor` instance.

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

- Method Detail
  - getFeatureChain
```
public List<FeatureChainedAttributeVisitor.FeatureChainLink> getFeatureChain()
```
    Returns the list of links in the feature types chain.
    
    Returns:
    
    a copy of the internal feature chain links list
  - addLink
```
public void addLink(FeatureChainedAttributeVisitor.FeatureChainLink chainLink)
```
    Adds a new link in the feature types chain.
    
    Parameters:
    
    chainLink - the link to add
  - getLink
```
public FeatureChainedAttributeVisitor.FeatureChainLink getLink(int linkIdx)
```
    Gets a link in the feature types chain by its index.
    
    Parameters:
    
    linkIdx - the link index (0-based)
    
    Returns:
    
    the feature chain link corresponding to the provided index
    
    Throws:
    
    IllegalArgumentException - if linkIdx is negative
    
    IndexOutOfBoundsException - if linkIdx is >= than the chain size
  - getFirstLink
```
public FeatureChainedAttributeVisitor.FeatureChainLink getFirstLink()
```
    Gets the first link in the feature types chain.
    
    Returns:
    
    the first feature chain link
    
    Throws:
    
    IndexOutOfBoundsException - if the feature types chain is empty
  - getLastLink
```
public FeatureChainedAttributeVisitor.FeatureChainLink getLastLink()
```
    Gets the last link in the feature types chain.
    
    Returns:
    
    the last feature chain link
    
    Throws:
    
    IndexOutOfBoundsException - if the feature types chain is empty
  - isJoiningEnabled
```
public boolean isJoiningEnabled()
```
    Checks whether all nested attribute mappings are instances of JoiningNestedAttributeMapping.
    
    Returns:
    
    true if all nested attribute mappings in the chain support joining, false otherwise
  - chainSize
```
public int chainSize()
```
    Gets the size of the feature types chain.
    
    Returns:
    
    the number of links in the chain
  - getAttributePath
```
public XPathUtil.StepList getAttributePath()
```
    Gets the path of the feature chained attribute.
    
    Returns:
    
    the attribute path
  - setAttributePath
```
public void setAttributePath(XPathUtil.StepList attributePath)
```
    Sets the path of the feature chained attribute.
    
    Parameters:
    
    attributePath - the attribute path to set
  - getFeatureTypeOwningAttribute
```
public FeatureTypeMapping getFeatureTypeOwningAttribute()
```
    Returns the feature type where the mapping configuration of the nested attribute is defined.
    In practice, this is the last linked feature type in the chain, except when the last chaining is done by reference (via an xlink:href attribute), in which case the second last feature type is returned.
  - shallowCopy
```
public FeatureChainedAttributeVisitor.FeatureChainedAttributeDescriptor shallowCopy()
```
    Perform a shallow copy of this FeatureChainedAttributeVisitor.FeatureChainedAttributeDescriptor instance.
    
    Returns:
    
    a shallow copy of the instance

Class FeatureChainedAttributeVisitor.FeatureChainedAttributeDescriptor

Method Summary

Methods inherited from class Object

Method Detail

getFeatureChain

addLink

getLink

getFirstLink

getLastLink

isJoiningEnabled

chainSize

getAttributePath

setAttributePath

getFeatureTypeOwningAttribute

shallowCopy