org.geotools.data
Class DefaultFeatureReader

java.lang.Object
  org.geotools.data.DefaultFeatureReader

All Implemented Interfaces:

FeatureReader

public class DefaultFeatureReader

extends java.lang.Object

implements FeatureReader

Basic support for reading Features from an AttributeReader.

Version:

$Id: DefaultFeatureReader.java,v 1.2 2003/11/04 00:28:49 cholmesny Exp $

Author:

Ian Schneider

Field Summary

protected java.lang.Object[]

attributes

Constructor Summary

DefaultFeatureReader(AttributeReader attributeReader)

DefaultFeatureReader(AttributeReader attributeReader, FeatureType schema)
Creates a new instance of AbstractFeatureReader

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

attributes

protected final java.lang.Object[] attributes

Constructor Detail

DefaultFeatureReader

public DefaultFeatureReader(AttributeReader attributeReader,
                            FeatureType 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

Method Detail

next

public Feature next()
             throws java.io.IOException,
                    IllegalAttributeException,
                    java.util.NoSuchElementException

Description copied from interface: FeatureReader

Reads the next Feature in the FeatureReader.

Specified by:

next in interface FeatureReader

Returns:

The next feature in the reader.

Throws:

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

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

java.io.IOException - If an error occurs reading the Feature.

createSchema

protected FeatureType createSchema()
                            throws SchemaException

Throws:

SchemaException

readFeature

protected Feature readFeature(AttributeReader atts)
                       throws IllegalAttributeException,
                              java.io.IOException

Throws:

IllegalAttributeException

java.io.IOException

close

public void close()
           throws java.io.IOException

Description copied from interface: FeatureReader

Release the underlying resources associated with this stream.

Specified by:

close in interface FeatureReader

Throws:

java.io.IOException

getFeatureType

public FeatureType getFeatureType()

Description copied from interface: FeatureReader

Return the FeatureType this reader has been configured to create.

Specified by:

getFeatureType in interface FeatureReader

Returns:

the FeatureType of the Features this FeatureReader will create.

hasNext

public boolean hasNext()
                throws java.io.IOException

Description copied from interface: FeatureReader

Query whether this FeatureReader has another Feature.

Specified by:

hasNext in interface FeatureReader

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:

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