BaseFeatureInputStream (OpenJUMP 2.4.0 API)

java.lang.Object
- com.vividsolutions.jump.io.BaseFeatureInputStream

All Implemented Interfaces:

FeatureInputStream

Direct Known Subclasses:

SpatialDatabasesFeatureInputStream
```
public abstract class BaseFeatureInputStream
extends Object
implements FeatureInputStream
```
Base class for FeatureInputStreamReaders. Handles the details of buffering the stream of features to allow for lookahead. This allows subclasses to implement the simpler semantics of "return null if no more features". Subclasses need to define readNext and close. They also need to set the featureSchema instance variable.

Constructor Summary

Constructors
Constructor Description

BaseFeatureInputStream()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract void`	`close()`
`abstract FeatureSchema`	`getFeatureSchema()`
`boolean`	`hasNext()`
`Feature`	`next()`
`protected abstract Feature`	`readNext()`	Read the next feature, if any.

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

- Constructor Detail
  - BaseFeatureInputStream
```
public BaseFeatureInputStream()
```
- Method Detail
  - getFeatureSchema
```
public abstract FeatureSchema getFeatureSchema()
```
    Specified by:
    
    getFeatureSchema in interface FeatureInputStream
  - next
```
public Feature next()
             throws Exception
```
    Specified by:
    
    next in interface FeatureInputStream
    
    Throws:
    
    Exception
  - hasNext
```
public boolean hasNext()
                throws Exception
```
    Specified by:
    
    hasNext in interface FeatureInputStream
    
    Throws:
    
    Exception
  - readNext
```
protected abstract Feature readNext()
                             throws Exception
```
    Read the next feature, if any.
    
    Returns:
    
    the next Feature, or null if there is none
    
    Throws:
    
    Exception - if an exception occured while reading next Feature
  - close
```
public abstract void close()
                    throws Exception
```
    Specified by:
    
    close in interface FeatureInputStream
    
    Throws:
    
    Exception