Class DoubleDiskDataStorage.BlockIterator

java.lang.Object

org.apfloat.spi.DataStorage.Iterator

org.apfloat.spi.DataStorage.AbstractIterator

org.apfloat.internal.DoubleDiskDataStorage.BlockIterator

All Implemented Interfaces:

Serializable, AutoCloseable

Enclosing class:

DoubleDiskDataStorage

private class DoubleDiskDataStorage.BlockIterator
extends DataStorage.AbstractIterator

Version:

1.8.0

Field Summary

Fields

Modifier and Type	Field	Description
private ArrayAccess	arrayAccess
private double[]	data
private int	offset
private int	remaining
private static final long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
BlockIterator(int mode, long startPosition, long endPosition)

Method Summary

Modifier and Type	Method	Description
private void	checkAvailable()
void	close()	Closes the iterator.
<T> T	get(Class<T> type)	Gets the current element as a the specified element type.
double	getDouble()	Gets the current element as a double.
void	next()	Advances the position in the stream by one element.
<T> void	set(Class<T> type, T value)	Sets the current element as the specified element type.
void	setDouble(double value)	Sets the current element as a double.

Methods inherited from class DataStorage.AbstractIterator

checkGet, checkLength, checkSet, getFloat, getIncrement, getInt, getLength, getLong, getMode, getPosition, hasNext, setFloat, setInt, setLong

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

arrayAccess

private ArrayAccess arrayAccess

data

private double[] data

offset

private int offset

remaining

private int remaining

Constructor Details

BlockIterator

public BlockIterator(int mode,
 long startPosition,
 long endPosition)
              throws IllegalArgumentException,
IllegalStateException,
ApfloatRuntimeException

Throws:

IllegalArgumentException

IllegalStateException

ApfloatRuntimeException

Method Details

next

public void next()
          throws IllegalStateException,
ApfloatRuntimeException

Description copied from class: DataStorage.AbstractIterator

Advances the position in the stream by one element.

Note: It is important that the iterator is iterated past the last element; that is next() is called startPosition - endPosition times. The get() or set() methods should not be called for the last element.

Overrides:

next in class DataStorage.AbstractIterator

Throws:

IllegalStateException - If the iterator has been iterated to the end already.

ApfloatRuntimeException

getDouble

public double getDouble()
                 throws IllegalStateException,
ApfloatRuntimeException

Description copied from class: DataStorage.Iterator

Gets the current element as a double.

The default implementation calls DataStorage.Iterator.get(Class) with argument Double.TYPE.

Overrides:

getDouble in class DataStorage.AbstractIterator

Returns:

The current element as a double.

Throws:

IllegalStateException - If the iterator is at the end.

ApfloatRuntimeException

setDouble

public void setDouble(double value)
               throws IllegalStateException,
ApfloatRuntimeException

Description copied from class: DataStorage.Iterator

Sets the current element as a double.

The default implementation calls DataStorage.Iterator.set(Class,Object) with first argument Double.TYPE.

Overrides:

setDouble in class DataStorage.AbstractIterator

Parameters:

value - The value to be set to the current element as a double.

Throws:

IllegalStateException - If the iterator is at the end.

ApfloatRuntimeException

get

public <T> T get(Class<T> type)
          throws UnsupportedOperationException,
IllegalStateException

Description copied from class: DataStorage.Iterator

Gets the current element as a the specified element type.

The default implementation always throws UnsupportedOperationException.

Overrides:

get in class DataStorage.Iterator

Type Parameters:

T - The type of the element.

Parameters:

type - The type of the element.

Returns:

The current element as the specified type.

Throws:

UnsupportedOperationException - If the element type of the data storage can't be converted to the specified type.

IllegalStateException - If the iterator is at the end.

set

public <T> void set(Class<T> type,
 T value)
             throws UnsupportedOperationException,
IllegalArgumentException,
IllegalStateException

Description copied from class: DataStorage.Iterator

Sets the current element as the specified element type.

The default implementation always throws UnsupportedOperationException.

Overrides:

set in class DataStorage.Iterator

Type Parameters:

T - The type of the element.

Parameters:

type - The type of the element.

value - The value to be set to the current element as the specified type.

Throws:

UnsupportedOperationException - If the element type of the data storage can't be converted to the specified type.

IllegalArgumentException - If the value is not of the specified type.

IllegalStateException - If the iterator is at the end.

close

public void close()
           throws ApfloatRuntimeException

Closes the iterator. This needs to be called only if the iterator is not iterated to the end.

Specified by:

close in interface AutoCloseable

Overrides:

close in class DataStorage.Iterator

Throws:

ApfloatRuntimeException

checkAvailable

private void checkAvailable()
                     throws ApfloatRuntimeException

Throws:

ApfloatRuntimeException