Package org.apfloat.internal

Class LongDiskDataStorage.BlockIterator

java.lang.Object

org.apfloat.spi.DataStorage.Iterator

org.apfloat.spi.DataStorage.AbstractIterator

org.apfloat.internal.LongDiskDataStorage.BlockIterator

All Implemented Interfaces:

java.io.Serializable, java.lang.AutoCloseable

Enclosing class:

LongDiskDataStorage

private class LongDiskDataStorage.BlockIterator
extends DataStorage.AbstractIterator

Field Summary

Fields

Modifier and Type	Field	Description
private ArrayAccess	arrayAccess
private long[]	data
private int	offset
private int	remaining
private static 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(java.lang.Class<T> type)	Gets the current element as a the specified element type.
long	getLong()	Gets the current element as a long.
void	next()	Advances the position in the stream by one element.
<T> void	set(java.lang.Class<T> type, T value)	Sets the current element as the specified element type.
void	setLong(long value)	Sets the current element as a long.

Methods inherited from class org.apfloat.spi.DataStorage.AbstractIterator

checkGet, checkLength, checkSet, getDouble, getFloat, getIncrement, getInt, getLength, getMode, getPosition, hasNext, setDouble, setFloat, setInt

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

arrayAccess

private ArrayAccess arrayAccess

data

private long[] data

offset

private int offset

remaining

private int remaining

Constructor Detail

BlockIterator

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

Throws:

java.lang.IllegalArgumentException

java.lang.IllegalStateException

ApfloatRuntimeException

Method Detail

next

public void next()
          throws java.lang.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:

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

ApfloatRuntimeException

getLong

public long getLong()
             throws java.lang.IllegalStateException,
                    ApfloatRuntimeException

Description copied from class: DataStorage.Iterator

Gets the current element as a long.

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

Overrides:

getLong in class DataStorage.AbstractIterator

Returns:

The current element as a long.

Throws:

java.lang.IllegalStateException - If the iterator is at the end.

ApfloatRuntimeException

setLong

public void setLong(long value)
             throws java.lang.IllegalStateException,
                    ApfloatRuntimeException

Description copied from class: DataStorage.Iterator

Sets the current element as a long.

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

Overrides:

setLong in class DataStorage.AbstractIterator

Parameters:

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

Throws:

java.lang.IllegalStateException - If the iterator is at the end.

ApfloatRuntimeException

get

public <T> T get(java.lang.Class<T> type)
          throws java.lang.UnsupportedOperationException,
                 java.lang.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:

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

java.lang.IllegalStateException - If the iterator is at the end.

set

public <T> void set(java.lang.Class<T> type,
                    T value)
             throws java.lang.UnsupportedOperationException,
                    java.lang.IllegalArgumentException,
                    java.lang.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:

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

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

java.lang.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 java.lang.AutoCloseable

Overrides:

close in class DataStorage.Iterator

Throws:

ApfloatRuntimeException

checkAvailable

private void checkAvailable()
                     throws ApfloatRuntimeException

Throws:

ApfloatRuntimeException