Package org.geotools.feature

Class PropertyImpl

Object

PropertyImpl

All Implemented Interfaces:

Property

Direct Known Subclasses:

AssociationImpl, AttributeImpl

public abstract class PropertyImpl
extends Object
implements Property

Implementation of Property.

Author:

Justin Deoliveira, The Open Planning Project

Field Summary

Fields

Modifier and Type	Field	Description
protected PropertyDescriptor	descriptor	descriptor of the property
protected Object	value	content of the property

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PropertyImpl(Object value, PropertyDescriptor descriptor)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
PropertyDescriptor	getDescriptor()	The PropertyDscriptor of the property, null if this is a top-level value.
Name	getName()	The name of the property with respect to its descriptor.
PropertyType	getType()	The type of the property.
Map<Object,Object>	getUserData()	A map of "user data" which enables applications to store "application-specific" information against a property.
Object	getUserData(Object key)
Object	getValue()	The value or content of the property.
int	hashCode()
boolean	isNillable()	Flag indicating if null is an acceptable value for the property.
void	setValue(Object value)	Sets the value or content of the property.
String	toString()

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Property

hasUserData

Field Detail

value

protected Object value

content of the property

descriptor

protected PropertyDescriptor descriptor

descriptor of the property

Constructor Detail

PropertyImpl

protected PropertyImpl(Object value,
                       PropertyDescriptor descriptor)

Method Detail

getValue

public Object getValue()

Description copied from interface: Property

The value or content of the property.

The class of this object is defined by getType().getBinding().

This value may be null. In this case getDescriptor().isNillable() would be true.

Specified by:

getValue in interface Property

Returns:

The value of the property.

setValue

public void setValue(Object value)

Description copied from interface: Property

Sets the value or content of the property.

The class of newValue should be the same as or a subclass of getType().getBinding().

newValue may be null if getDescriptor().isNillable() is true.

Specified by:

setValue in interface Property

Parameters:

value - The new value of the property.

getDescriptor

public PropertyDescriptor getDescriptor()

Description copied from interface: Property

The PropertyDscriptor of the property, null if this is a top-level value.

The descriptor provides information about the property with respect to its containing entity (more often then not a Feature or ComplexAttribute.

Specified by:

getDescriptor in interface Property

Returns:

The property descriptor, null if this is a top-level value.

See Also:

ComplexAttribute

getName

public Name getName()

Description copied from interface: Property

The name of the property with respect to its descriptor.

This method is convenience for getDescriptor().getName().

Specified by:

getName in interface Property

Returns:

name of the property.

getType

public PropertyType getType()

Description copied from interface: Property

The type of the property.

The type contains information about the value or content of the property such as its java class.

This value is also available via getDescriptor().getType().

Specified by:

getType in interface Property

Returns:

The property type.

isNillable

public boolean isNillable()

Description copied from interface: Property

Flag indicating if null is an acceptable value for the property.

This method is convenience for getDescriptor().isNillable().

Specified by:

isNillable in interface Property

Returns:

true if the value of the property is allowed to be null, otherwise false .

getUserData

public Map<Object,Object> getUserData()

Description copied from interface: Property

A map of "user data" which enables applications to store "application-specific" information against a property.

An example of information that may wish to be stored along with an attribute could be its srs information (in the case of a geometric attribute ).

 
  GeometryAttribute attribute = ...;

  //set the crs
  CoordinateReferenceSystem crs = CRS.decode("EPSG:4326");
  attribute.setCRS( crs );

  //set the srs
  attribute.getUserData().put( "srs", "EPSG:4326" );
 
 

Specified by:

getUserData in interface Property

Returns:

A map of user data.

getUserData

public Object getUserData(Object key)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object