VPFFeatureClass (Geotools modules 25.2 API)

Object
- VPFFeatureClass

All Implemented Interfaces:

SimpleFeatureType, AttributeType, ComplexType, FeatureType, PropertyType
```
public class VPFFeatureClass
extends Object
implements SimpleFeatureType
```
A VPF feature class. Note that feature classes may contain one or more feature types. However, all of the feature types of a feature class share the same schema. A feature type will therefore delegate its schema related operations to its feature class.

Author:

Jeff Yutzler

Constructor Summary

Constructors
Constructor and Description
`VPFFeatureClass(VPFCoverage cCoverage, String cName, String cDirectoryName)` Constructor
`VPFFeatureClass(VPFCoverage cCoverage, String cName, String cDirectoryName, URI cNamespace)` Constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object obj)` Equality based on property `PropertyType.getName()`.
`int`	`getAttributeCount()` Returns the number of attributes composing the feature type This method is convenience for `getAttributes().size()`.
`List<AttributeDescriptor>`	`getAttributeDescriptors()` The list of attribute descriptors which make up the feature type.
`Class<Collection<Property>>`	`getBinding()` Override and type narrow to Collection.class.
`CoordinateReferenceSystem`	`getCoordinateReferenceSystem()` The coordinate reference system of the feature.
`VPFCoverage`	`getCoverage()` The coverage that owns this feature class
`InternationalString`	`getDescription()` Human readable description of this property type.
`AttributeDescriptor`	`getDescriptor(int index)` Returns the attribute descriptor at the specified index.
`AttributeDescriptor`	`getDescriptor(Name name)` Returns the attribute descriptor which matches the specified name.
`AttributeDescriptor`	`getDescriptor(String name)` Returns the attribute descriptor which matches the specified name.
`Collection<PropertyDescriptor>`	`getDescriptors()` The property descriptor which compose the complex type.
`String`	`getDirectoryName()` The path to the directory that contains this feature class
`String`	`getFCTypeName()`
`SimpleFeatureType`	`getFeatureType()`
`List<VPFFile>`	`getFileList()` Returns a list of file objects
`GeometryDescriptor`	`getGeometryDescriptor()` Describe the default geometric attribute for this feature.
`VPFGeometryFactory`	`getGeometryFactory()`
`Name`	`getName()` The name of the property type.
`List<Filter>`	`getRestrictions()` List of restrictions used define valid values for properties of this property type.
`AttributeType`	`getSuper()` Override of `PropertyType.getSuper()` which type narrows to `AttributeType`.
`AttributeType`	`getType(int index)` Returns the type of the attribute at the specified index.
`AttributeType`	`getType(Name name)` Returns the type of the attribute which matches the specified name.
`AttributeType`	`getType(String name)` Returns the type of the attribute which matches the specified name.
`String`	`getTypeName()` The local name for this FeatureType.
`List<AttributeType>`	`getTypes()` Returns the types of all the attributes which make up the feature.
`Map<Object,Object>`	`getUserData()` A map of "user data" which enables applications to store "application-specific" information against a property type.
`int`	`hashCode()` Hashcode override based on `PropertyType.getName()`.
`boolean`	`hasNext()`
`int`	`indexOf(Name name)` Returns the index of the attribute which matches the specified name.
`int`	`indexOf(String name)` Returns the index of the attribute which matches the specified name.
`boolean`	`isAbstract()` Flag indicating if the type is abstract or not.
`boolean`	`isIdentified()` Features are always identified.
`boolean`	`isInline()` Indicates ability of XPath to notice this attribute.
`List<SimpleFeature>`	`readAllRows(SimpleFeatureType featureType)`
`SimpleFeature`	`readNext(SimpleFeatureType featureType)`
`void`	`reset()`

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

- Constructor Detail
  - VPFFeatureClass
```
public VPFFeatureClass(VPFCoverage cCoverage,
                       String cName,
                       String cDirectoryName)
                throws SchemaException
```
    Constructor
    
    Parameters:
    
    cCoverage - the owning coverage
    
    cName - the name of the class
    
    cDirectoryName - the directory containing the class
    
    Throws:
    
    SchemaException - For problems making one of the feature classes as a FeatureType.
  - VPFFeatureClass
```
public VPFFeatureClass(VPFCoverage cCoverage,
                       String cName,
                       String cDirectoryName,
                       URI cNamespace)
                throws SchemaException
```
    Constructor
    
    Parameters:
    
    cCoverage - the owning coverage
    
    cName - the name of the class
    
    cDirectoryName - the directory containing the class
    
    cNamespace - the namespace to create features with. If null then a default from VPFLibrary.DEFAULTNAMESPACE is assigned.
    
    Throws:
    
    SchemaException - For problems making one of the feature classes as a FeatureType.
- Method Detail
  - reset
```
public void reset()
```
  - hasNext
```
public boolean hasNext()
```
  - readAllRows
```
public List<SimpleFeature> readAllRows(SimpleFeatureType featureType)
                                throws IOException
```
    Throws:
    
    IOException
  - readNext
```
public SimpleFeature readNext(SimpleFeatureType featureType)
```
  - getCoverage
```
public VPFCoverage getCoverage()
```
    The coverage that owns this feature class
    
    Returns:
    
    a VPFCoverage object
  - getDirectoryName
```
public String getDirectoryName()
```
    The path to the directory that contains this feature class
    
    Returns:
    
    a String value representing the path to the directory.
  - getFileList
```
public List<VPFFile> getFileList()
```
    Returns a list of file objects
    
    Returns:
    
    a List containing VPFFile objects.
  - getFeatureType
```
public SimpleFeatureType getFeatureType()
```
  - getTypeName
```
public String getTypeName()
```
    Description copied from interface: SimpleFeatureType
    
    The local name for this FeatureType.
    Specifically this method returns getName().getLocalPart().
    
    Specified by:
    
    getTypeName in interface SimpleFeatureType
    
    Returns:
    
    The local name for this FeatureType.
  - getFCTypeName
```
public String getFCTypeName()
```
  - getAttributeCount
```
public int getAttributeCount()
```
    Description copied from interface: SimpleFeatureType
    
    Returns the number of attributes composing the feature type
    This method is convenience for getAttributes().size().
    
    Specified by:
    
    getAttributeCount in interface SimpleFeatureType
    
    Returns:
    
    The number of attributes.
  - isAbstract
```
public boolean isAbstract()
```
    Description copied from interface: PropertyType
    
    Flag indicating if the type is abstract or not.
    
    Specified by:
    
    isAbstract in interface PropertyType
    
    Returns:
    
    true if the type is abstract, otherwise false.
  - getGeometryFactory
```
public VPFGeometryFactory getGeometryFactory()
```
    Returns:
    
    Returns the geometryFactory.
  - equals
```
public boolean equals(Object obj)
```
    Description copied from interface: PropertyType
    
    Equality based on property PropertyType.getName().
    
    Specified by:
    
    equals in interface PropertyType
    
    Overrides:
    
    equals in class Object
    
    Returns:
    
    true if other is a PropertyType with the same name
  - hashCode
```
public int hashCode()
```
    Description copied from interface: PropertyType
    
    Hashcode override based on PropertyType.getName().
    
    Specified by:
    
    hashCode in interface PropertyType
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    
    getName().hashCode()
  - getDescriptor
```
public AttributeDescriptor getDescriptor(Name name)
```
    Description copied from interface: SimpleFeatureType
    Returns the attribute descriptor which matches the specified name.
    This method is convenience for:
```
 return (AttributeDescriptor) getProperty(name);
 
```
    This method returns null if no such attribute exists.
    Specified by:
    
    getDescriptor in interface SimpleFeatureType
    
    Specified by:
    
    getDescriptor in interface ComplexType
    
    Parameters:
    
    name - The name of the descriptor to return.
    
    Returns:
    
    The attribute descriptor matching the specified name, or null if no such attribute exists.
  - getDescriptor
```
public AttributeDescriptor getDescriptor(String name)
```
    Description copied from interface: SimpleFeatureType
    Returns the attribute descriptor which matches the specified name.
    This method is convenience for:
```
 return (AttributeDescriptor) getProperty(name);
 
```
    This method returns null if no such attribute exists.
    Specified by:
    
    getDescriptor in interface SimpleFeatureType
    
    Specified by:
    
    getDescriptor in interface ComplexType
    
    Parameters:
    
    name - The name of the descriptor to return.
    
    Returns:
    
    The attribute descriptor matching the specified name, or null if no such attribute exists.
  - getDescriptor
```
public AttributeDescriptor getDescriptor(int index)
```
    Description copied from interface: SimpleFeatureType
    Returns the attribute descriptor at the specified index.
    This method is convenience for:
```
 return (AttributeDescriptor) ((List) getProperties()).get(index);
 
```
    Specified by:
    
    getDescriptor in interface SimpleFeatureType
    
    Parameters:
    
    index - The index of the descriptor to return.
    
    Returns:
    
    The attribute descriptor at the specified index.
  - getAttributeDescriptors
```
public List<AttributeDescriptor> getAttributeDescriptors()
```
    Description copied from interface: SimpleFeatureType
    The list of attribute descriptors which make up the feature type.
    This method is a convenience for:
```
 return (List<AttributeDescriptor>) getProperties();
 
```
    Specified by:
    
    getAttributeDescriptors in interface SimpleFeatureType
    
    Returns:
    
    The ordered list of attribute descriptors.
  - getType
```
public AttributeType getType(Name name)
```
    Description copied from interface: SimpleFeatureType
    Returns the type of the attribute which matches the specified name.
    This method is convenience for:
```
 return (AttributeType) getProperty(name).getType();
 
```
    If there is no such attribute which matches name, null is returned.
    Specified by:
    
    getType in interface SimpleFeatureType
    
    Parameters:
    
    name - The name of the attribute whose type to return.
    
    Returns:
    
    The attribute type matching the specified name, or null.
  - getType
```
public AttributeType getType(String name)
```
    Description copied from interface: SimpleFeatureType
    Returns the type of the attribute which matches the specified name.
    This method is convenience for:
```
 return (AttributeType) getProperty(name).getType();
 
```
    If there is no such attribute which matches name, null is returned.
    Specified by:
    
    getType in interface SimpleFeatureType
    
    Parameters:
    
    name - The name of the attribute whose type to return.
    
    Returns:
    
    The attribute type matching the specified name, or null.
  - getType
```
public AttributeType getType(int index)
```
    Description copied from interface: SimpleFeatureType
    Returns the type of the attribute at the specified index.
    This method is convenience for:
```
   return (AttributeType)((List)getProperties()).get(index)).getType();
 
```
    Specified by:
    
    getType in interface SimpleFeatureType
    
    Parameters:
    
    index - The index of the attribute whose type to return.
    
    Returns:
    
    The attribute type at the specified index.
  - getTypes
```
public List<AttributeType> getTypes()
```
    Description copied from interface: SimpleFeatureType
    Returns the types of all the attributes which make up the feature.
    This method is convenience for:
```
 List types = new ArrayList();
 for (Property p : getProperties()) {
     types.add(p.getType());
 }
 return types;
 
```
    Specified by:
    
    getTypes in interface SimpleFeatureType
    
    Returns:
    
    The list of attribute types.
  - getCoordinateReferenceSystem
```
public CoordinateReferenceSystem getCoordinateReferenceSystem()
```
    Description copied from interface: FeatureType
    The coordinate reference system of the feature.
    This value is derived from the default geometry attribute:
```
   ((GeometryType)getDefaultGeometry().getType()).getCRS();
 
```
    This method will return null in the case where no default geometric attribute is defined.
    Specified by:
    
    getCoordinateReferenceSystem in interface FeatureType
    
    Returns:
    
    The coordinate referencing system, or null.
  - getGeometryDescriptor
```
public GeometryDescriptor getGeometryDescriptor()
```
    Description copied from interface: FeatureType
    
    Describe the default geometric attribute for this feature.
    This method returns null in the case where no such attribute exists.
    
    Specified by:
    
    getGeometryDescriptor in interface FeatureType
    
    Returns:
    
    The descriptor of the default geometry attribute, or null.
  - getBinding
```
public Class<Collection<Property>> getBinding()
```
    Description copied from interface: ComplexType
    
    Override and type narrow to Collection.class.
    
    Specified by:
    
    getBinding in interface ComplexType
    
    Specified by:
    
    getBinding in interface PropertyType
    
    Returns:
    
    The binding of the property type.
  - getDescriptors
```
public Collection<PropertyDescriptor> getDescriptors()
```
    Description copied from interface: ComplexType
    
    The property descriptor which compose the complex type.
    A complex type can be composed of attributes and associations which means this collection returns instances of AttributeDescriptor and AssociationDescriptor.
    
    Specified by:
    
    getDescriptors in interface ComplexType
    
    Returns:
    
    Collection of descriptors representing the composition of the complex type.
  - isInline
```
public boolean isInline()
```
    Description copied from interface: ComplexType
    Indicates ability of XPath to notice this attribute.
    This facility is used to "hide" an attribute from XPath searches, while the compelx contents will still be navigated no additional nesting will be considered. It will be as if the content were "folded" inline resulting in a flatter nesting structure.
    Construct described using Java Interfaces:
```
 interface TestSample {
     String name;
     List measurement;
 }
 interface Measurement {
     long timestamp;
     Point point;
     long reading;
 }
 
```
    The above is can hold the following information:
```
 [ name="survey1",
   measurements=(
       [timestamp=3,point=(2,3), reading=4200],
       [timestamp=9,point=(2,4), reading=445600],
   )
 ]
 
```
    Out of the box this is represented to XPath as the following tree:
```
 root/name: survey1
 root/measurement[0]/timestamp:3
 root/measurement[0]/point: (2,3)
 root/measurement[0]/reading: 4200
 root/measurement[1]/timestamp:9
 root/measurement[2]/point: (2,4)
 root/measurement[3]/reading: 445600
 
```
    By inlining Measurement we can achive the following:
```
 root/name: survey1
 root/timestamp[0]:3
 root/point[0]: (2,3)
 root/reading[0]: 4200
 root/timestamp[1]:9
 root/point[1]: (2,4)
 root/reading[1] 445600
 
```
    Specified by:
    
    isInline in interface ComplexType
    
    Returns:
    
    true if attribute is to be considered transparent by XPath queries
  - getSuper
```
public AttributeType getSuper()
```
    Description copied from interface: AttributeType
    
    Override of PropertyType.getSuper() which type narrows to AttributeType.
    
    Specified by:
    
    getSuper in interface AttributeType
    
    Specified by:
    
    getSuper in interface PropertyType
    
    Returns:
    
    The parent or super type, or null.
    
    See Also:
    
    PropertyType.getSuper()
  - isIdentified
```
public boolean isIdentified()
```
    Description copied from interface: FeatureType
    
    Features are always identified.
    
    Specified by:
    
    isIdentified in interface AttributeType
    
    Specified by:
    
    isIdentified in interface FeatureType
    
    Returns:
    
    true
    
    See Also:
    
    Attribute#getID()
  - getDescription
```
public InternationalString getDescription()
```
    Description copied from interface: PropertyType
    
    Human readable description of this property type.
    
    Specified by:
    
    getDescription in interface PropertyType
    
    Returns:
    
    Human readable description of this property type.
  - getName
```
public Name getName()
```
    Description copied from interface: PropertyType
    
    The name of the property type.
    Note that this is not the same name as Property.getName(), which is the name of the instance of the type, not the type itself.
    The returned name is a qualified name made up of two parts. The first a namespace uri (Name.getNamespaceURI(), and the second a local part (Name.getLocalPart().
    This value is never null.
    
    Specified by:
    
    getName in interface PropertyType
    
    Returns:
    
    The name of the property type.
  - indexOf
```
public int indexOf(String name)
```
    Description copied from interface: SimpleFeatureType
    
    Returns the index of the attribute which matches the specified name.
    -1 is returned in the instance there is no attribute matching the specified name.
    
    Specified by:
    
    indexOf in interface SimpleFeatureType
    
    Parameters:
    
    name - The name of the attribute whose index to return.
    
    Returns:
    
    index of named attribute, or -1 if not found.
  - indexOf
```
public int indexOf(Name name)
```
    Description copied from interface: SimpleFeatureType
    
    Returns the index of the attribute which matches the specified name.
    -1 is returned in the instance there is no attribute matching the specified name.
    
    Specified by:
    
    indexOf in interface SimpleFeatureType
    
    Parameters:
    
    name - The name of the attribute whose index to return.
    
    Returns:
    
    index of named attribute, or -1 if not found.
  - getRestrictions
```
public List<Filter> getRestrictions()
```
    Description copied from interface: PropertyType
    
    List of restrictions used define valid values for properties of this property type.
    Each restriction is a Filter object in which the property is passed through. If Filter.evaluate(Object) returns true the restriction is met. If false is returned then the restriction has not been met and the property should be considered invalid. Remember to check getSuper().getRestrictions() as well.
    This method returns an empty set in the case of no restrictions and should not return null.
    
    Specified by:
    
    getRestrictions in interface PropertyType
    
    Returns:
    
    List used to validate allowable values.
  - getUserData
```
public Map<Object,Object> getUserData()
```
    Description copied from interface: PropertyType
    A map of "user data" which enables applications to store "application-specific" information against a property type.
    As an example, consider an application that builds a PropertyType from an xml schema. A useful bit of information to attach to the PropertyType is the original schema itself, in whatever construct it might be stored in:
```
 
 XSDComplexTypeDefinition complexTypeDef = ...;
 PropertyType type = buildPropertyType( complexTypeDef );

 type.getUserData().put( XSDComplexTypeDefintion.class, complexTypeDef );
 
 
```
    Specified by:
    
    getUserData in interface PropertyType
    
    Returns:
    
    A map of user data.

Class VPFFeatureClass

Constructor Summary

Method Summary

Methods inherited from class Object

Constructor Detail

VPFFeatureClass

VPFFeatureClass

Method Detail

reset

hasNext

readAllRows

readNext

getCoverage

getDirectoryName

getFileList

getFeatureType

getTypeName

getFCTypeName

getAttributeCount

isAbstract

getGeometryFactory

equals

hashCode

getDescriptor

getDescriptor

getDescriptor

getAttributeDescriptors

getType

getType

getType

getTypes

getCoordinateReferenceSystem

getGeometryDescriptor

getBinding

getDescriptors

isInline

getSuper

isIdentified

getDescription

getName

indexOf

indexOf

getRestrictions

getUserData