java.lang.Object
- science.aist.gtf.graph.impl.MetaTagCollectionImpl
- - science.aist.gtf.graph.impl.AbstractVertex<V,E>
  - - science.aist.gtf.graph.impl.VertexViewImpl<V,E>

Type Parameters:

V - the type of the decorated vertex value

E - the type of the decorated edge value

All Implemented Interfaces:

MetaTagCollection, Vertex<V,E>, VertexView<V,E>
```
public class VertexViewImpl<V,E>
extends AbstractVertex<V,E>
implements VertexView<V,E>
```
This class is used to provide a view on a given vertex, this means, that it decorates an existing vertex but uses its own graph state which does only contain a view on the graph.

Since:

1.0

Author:

Andreas Pointner

Constructor Summary

Constructors
Constructor Description

VertexViewImpl()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T> boolean`	`addMetaTag(MetaTag<T> metaTag)`	Adds a meta tag to the current vertex
`V`	`getElement()`
`<T> Collection<MetaTag<T>>`	`getMetaTags()`
`<T> T`	`getMetaTagValue(String key)`	Returns the first value for a meta tag with a given key or throws an exception if not present
`<T> T`	`getMetaTagValue(String key, Class<T> clazz)`	Returns the value for a meta tag with a given key
`void`	`removeMetaTag(String key, Class<?>... clazz)`	Removes all meta that, where the key of the meta tag equals the key parameter.
`<T> boolean`	`removeMetaTag(MetaTag<T> metaTag)`	Removes a meta tag from the current vertex
`void`	`setElement(V element)`	Method that allows to change the decorated element - this is especially needed at graph creation time.
`<T> Optional<T>`	`tryGetMetaTagValue(String key)`	Try to return the first value for a meta tag with a given key
`<T> Optional<T>`	`tryGetMetaTagValue(String key, Class<T> clazz)`	Tries to get a value for a given meta tag with a given key

Methods inherited from class science.aist.gtf.graph.impl.AbstractVertex
getAdjacentVertices, getEdges, getIncomingEdges, getOutgoingEdges

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

Methods inherited from interface science.aist.gtf.graph.Vertex
getAdjacentVertices, getEdges, getIncomingEdges, getOutgoingEdges

Methods inherited from interface science.aist.gtf.graph.VertexView
getViewedVertex

- Constructor Detail
  - VertexViewImpl
```
public VertexViewImpl()
```
- Method Detail
  - getMetaTags
```
public <T> Collection<MetaTag<T>> getMetaTags()
```
    Specified by:
    
    getMetaTags in interface MetaTagCollection
    
    Overrides:
    
    getMetaTags in class MetaTagCollectionImpl
    
    Type Parameters:
    
    T - returns a collection of all the meta tags
    
    Returns:
    
    the collection of all current meta tags
  - addMetaTag
```
public <T> boolean addMetaTag(MetaTag<T> metaTag)
```
    Description copied from interface: MetaTagCollection
    
    Adds a meta tag to the current vertex
    
    Specified by:
    
    addMetaTag in interface MetaTagCollection
    
    Overrides:
    
    addMetaTag in class MetaTagCollectionImpl
    
    Type Parameters:
    
    T - the type of the meta tag to add
    
    Parameters:
    
    metaTag - the meta tag
    
    Returns:
    
    a flag which indicates if the element was added
  - removeMetaTag
```
public <T> boolean removeMetaTag(MetaTag<T> metaTag)
```
    Description copied from interface: MetaTagCollection
    
    Removes a meta tag from the current vertex
    
    Specified by:
    
    removeMetaTag in interface MetaTagCollection
    
    Overrides:
    
    removeMetaTag in class MetaTagCollectionImpl
    
    Type Parameters:
    
    T - the type of the meta tag to remove
    
    Parameters:
    
    metaTag - the meta tag
    
    Returns:
    
    a flag which indicates if the element was removed
  - getMetaTagValue
```
public <T> T getMetaTagValue(String key,
                             Class<T> clazz)
```
    Description copied from interface: MetaTagCollection
    
    Returns the value for a meta tag with a given key
    
    Specified by:
    
    getMetaTagValue in interface MetaTagCollection
    
    Type Parameters:
    
    T - the type of the meta tag value
    
    Parameters:
    
    key - the key of the meta tag
    
    clazz - the class of the meta tag value
    
    Returns:
    
    the value of the meta tag, if there are multiple elements with the same key and class type, the first one which is matching will be returned
  - tryGetMetaTagValue
```
public <T> Optional<T> tryGetMetaTagValue(String key,
                                          Class<T> clazz)
```
    Description copied from interface: MetaTagCollection
    
    Tries to get a value for a given meta tag with a given key
    
    Specified by:
    
    tryGetMetaTagValue in interface MetaTagCollection
    
    Type Parameters:
    
    T - the type of the meta tag value
    
    Parameters:
    
    key - the key of the meta tag
    
    clazz - the class of the meta tag value
    
    Returns:
    
    the value of the meta tag, if there are multiple elements with the same key class type, the first one which is matching will be returned
  - getMetaTagValue
```
public <T> T getMetaTagValue(String key)
```
    Description copied from interface: MetaTagCollection
    
    Returns the first value for a meta tag with a given key or throws an exception if not present
    
    Specified by:
    
    getMetaTagValue in interface MetaTagCollection
    
    Type Parameters:
    
    T - the type of the meta tag
    
    Parameters:
    
    key - the key
    
    Returns:
    
    the value if present
    
    See Also:
    
    MetaTagCollection.getMetaTagValue(String, Class)
  - tryGetMetaTagValue
```
public <T> Optional<T> tryGetMetaTagValue(String key)
```
    Description copied from interface: MetaTagCollection
    
    Try to return the first value for a meta tag with a given key
    
    Specified by:
    
    tryGetMetaTagValue in interface MetaTagCollection
    
    Type Parameters:
    
    T - the type of the meta tag
    
    Parameters:
    
    key - the key
    
    Returns:
    
    the value if present
    
    See Also:
    
    MetaTagCollection.tryGetMetaTagValue(String, Class)
  - removeMetaTag
```
public void removeMetaTag(String key,
                          Class<?>... clazz)
```
    Description copied from interface: MetaTagCollection
    
    Removes all meta that, where the key of the meta tag equals the key parameter. Optionally it also checks if the value type is one of the given classes. If classes is null or empty it will only check for the key. After calling this method the meta tag with the associated key will be removed. In case the key does not exist, no error will occur.
    
    Specified by:
    
    removeMetaTag in interface MetaTagCollection
    
    Parameters:
    
    key - the key of the meta tag to be removed
    
    clazz - optional: a list of possible types where the meta tag must be one of them.
  - getElement
```
public V getElement()
```
    Specified by:
    
    getElement in interface Vertex<V,E>
    
    Returns:
    
    returns the decorated element
  - setElement
```
public void setElement(V element)
```
    Description copied from class: AbstractVertex
    
    Method that allows to change the decorated element - this is especially needed at graph creation time.
    
    Specified by:
    
    setElement in class AbstractVertex<V,E>
    
    Parameters:
    
    element - The new decorated element.

Class VertexViewImpl<V,​E>

Constructor Summary

Method Summary

Methods inherited from class science.aist.gtf.graph.impl.AbstractVertex

Methods inherited from class java.lang.Object

Methods inherited from interface science.aist.gtf.graph.Vertex

Methods inherited from interface science.aist.gtf.graph.VertexView

Constructor Detail

VertexViewImpl

Method Detail

getMetaTags

addMetaTag

removeMetaTag

getMetaTagValue

tryGetMetaTagValue

getMetaTagValue

tryGetMetaTagValue

removeMetaTag

getElement

setElement

Class VertexViewImpl<V,E>