org.geotools.data

Class DefaultFeatureReader

Object

DefaultFeatureReader

All Implemented Interfaces:

Closeable, AutoCloseable, FeatureReader<SimpleFeatureType,SimpleFeature>

Direct Known Subclasses:

ArcSDEFeatureReader

public class DefaultFeatureReader
extends Object
implements FeatureReader<SimpleFeatureType,SimpleFeature>

Basic support for reading Features from an AttributeReader.

Author:

Ian Schneider

Field Summary

Fields

Modifier and Type	Field and Description
protected Object[]	attributes

Constructor Summary

Constructors

Constructor and Description
DefaultFeatureReader(AttributeReader attributeReader)
DefaultFeatureReader(AttributeReader attributeReader, SimpleFeatureType schema) Creates a new instance of AbstractFeatureReader

Method Summary

Modifier and Type	Method and Description
void	close() Release the underlying resources associated with this stream.
protected SimpleFeatureType	createSchema()
SimpleFeatureType	getFeatureType() Return the FeatureType this reader has been configured to create.
boolean	hasNext() Query whether this FeatureReader has another Feature.
SimpleFeature	next() Reads the next Feature in the FeatureReader.
protected SimpleFeature	readFeature(AttributeReader atts)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

attributes

protected final Object[] attributes

Constructor Detail

DefaultFeatureReader

public DefaultFeatureReader(AttributeReader attributeReader,
                            SimpleFeatureType schema)
                     throws SchemaException

Creates a new instance of AbstractFeatureReader

Parameters:

attributeReader - AttributeReader for contents

schema - FeatureType to use, null if not provided

Throws:

SchemaException - If Schema could not be obtained

DefaultFeatureReader

public DefaultFeatureReader(AttributeReader attributeReader)
                     throws SchemaException

Throws:

SchemaException

Method Detail

next

public SimpleFeature next()
                   throws IOException,
                          IllegalAttributeException,
                          NoSuchElementException

Description copied from interface: FeatureReader

Reads the next Feature in the FeatureReader.

Specified by:

next in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

The next feature in the reader.

Throws:

IOException - If an error occurs reading the Feature.

IllegalAttributeException - If the attributes read do not comply with the FeatureType.

NoSuchElementException - If there are no more Features in the Reader.

createSchema

protected SimpleFeatureType createSchema()
                                  throws SchemaException

Throws:

SchemaException

readFeature

protected SimpleFeature readFeature(AttributeReader atts)
                             throws IllegalAttributeException,
                                    IOException

Throws:

IllegalAttributeException

IOException

close

public void close()
           throws IOException

Description copied from interface: FeatureReader

Release the underlying resources associated with this stream.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Throws:

IOException - if an I/O error occurs

getFeatureType

public SimpleFeatureType getFeatureType()

Description copied from interface: FeatureReader

Return the FeatureType this reader has been configured to create.

Specified by:

getFeatureType in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

the FeatureType of the Features this FeatureReader will create.

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: FeatureReader

Query whether this FeatureReader has another Feature.

Specified by:

hasNext in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

True if there are more Features to be read. In other words, true if calls to next would return a feature rather than throwing an exception.

Throws:

IOException - If an error occurs determining if there are more Features.