Class DoubleMemoryDataStorage.ReadWriteIterator

java.lang.Object

org.apfloat.spi.DataStorage.Iterator

org.apfloat.spi.DataStorage.AbstractIterator

org.apfloat.internal.DoubleMemoryDataStorage.ReadWriteIterator

All Implemented Interfaces:

Serializable, AutoCloseable

Direct Known Subclasses:

DoubleMemoryDataStorage.ReadOnlyIterator, DoubleMemoryDataStorage.WriteOnlyIterator

Enclosing class:

DoubleMemoryDataStorage

private class DoubleMemoryDataStorage.ReadWriteIterator
extends DataStorage.AbstractIterator

Version:

1.9.0

Field Summary

Fields

Modifier and Type	Field	Description
private double[]	data
private int	length
private int	position
private static final long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ReadWriteIterator(int mode, long startPosition, long endPosition)
	ReadWriteIterator(long startPosition, long endPosition)

Method Summary

Modifier and Type	Method	Description
protected void	checkLength()	Checks if the iterator is at the end yet.
<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.
boolean	hasNext()	Check if next() can be called without going past the end of the sequence.
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, checkSet, getFloat, getIncrement, getInt, getLength, getLong, getMode, getPosition, setFloat, setInt, setLong

Methods inherited from class DataStorage.Iterator

close

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

data

private double[] data

position

private int position

length

private int length

Constructor Details

ReadWriteIterator

public ReadWriteIterator(long startPosition,
 long endPosition)
                  throws IllegalArgumentException,
IllegalStateException,
ApfloatRuntimeException

Throws:

IllegalArgumentException

IllegalStateException

ApfloatRuntimeException

ReadWriteIterator

protected ReadWriteIterator(int mode,
 long startPosition,
 long endPosition)
                     throws IllegalArgumentException,
IllegalStateException,
ApfloatRuntimeException

Throws:

IllegalArgumentException

IllegalStateException

ApfloatRuntimeException

Method Details

hasNext

public boolean hasNext()

Description copied from class: DataStorage.AbstractIterator

Check if next() can be called without going past the end of the sequence. That is, if next() can be called without deliberately causing an exception.

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:

hasNext in class DataStorage.AbstractIterator

Returns:

true if DataStorage.AbstractIterator.next() can be called, otherwise false.

next

public void next()
          throws IllegalStateException

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.

getDouble

public double getDouble()
                 throws IllegalStateException

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.

setDouble

public void setDouble(double value)
               throws IllegalStateException

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.

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.

checkLength

protected void checkLength()
                    throws IllegalStateException

Description copied from class: DataStorage.AbstractIterator

Checks if the iterator is at the end yet.

Overrides:

checkLength in class DataStorage.AbstractIterator

Throws:

IllegalStateException - If the iterator is at end.