com.alexkasko.unsafe.offheapstruct

Class OffHeapStructBinarySearch.IndexRange

java.lang.Object

com.alexkasko.unsafe.offheapstruct.OffHeapStructBinarySearch.IndexRange

All Implemented Interfaces:

Serializable

Enclosing class:

OffHeapStructBinarySearch

public static class OffHeapStructBinarySearch.IndexRange
extends Object
implements Serializable

OffHeapStructCollection index range representation. Was made mutable to prevent new object instantiation for each search. isEmpty() method should be checked before accessing indices. Empty range will contain negative equal indices which values are -index - 1 where the element would be inserted. Range with size 1 will contain equal indices.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	empty
private long	fromIndex
private static long	serialVersionUID
private long	toIndex

Constructor Summary

Constructors

Constructor and Description
OffHeapStructBinarySearch.IndexRange()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o)
long	getFromIndex() Start index or -index - 1 where the element would be inserted for empty range
long	getToIndex() End index or -index - 1 where the element would be inserted for empty range
int	hashCode()
boolean	isEmpty() Whether this range is empty
boolean	isNotEmpty() Whether this range is not empty
(package private) void	set(long from, long to) Sets boundaries for non-empty range
(package private) void	setEmpty(long value) Sets value for empty range
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

empty

private boolean empty

fromIndex

private long fromIndex

toIndex

private long toIndex

Constructor Detail

OffHeapStructBinarySearch.IndexRange

public OffHeapStructBinarySearch.IndexRange()

Method Detail

setEmpty

void setEmpty(long value)

Sets value for empty range

Parameters:

value - negative value for empty range returned by search

set

void set(long from,
       long to)

Sets boundaries for non-empty range

Parameters:

from - start index

to - end index

isEmpty

public boolean isEmpty()

Whether this range is empty

Returns:

whether this range is empty

isNotEmpty

public boolean isNotEmpty()

Whether this range is not empty

Returns:

whether this range is not empty

getFromIndex

public long getFromIndex()

Start index or -index - 1 where the element would be inserted for empty range

Returns:

start index value or -index - 1 where the element would be inserted for empty range

getToIndex

public long getToIndex()

End index or -index - 1 where the element would be inserted for empty range

Returns:

end index value, -index - 1 where the element would be inserted for empty range

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object