org.magnos.data.var
Class LongVar

java.lang.Object
  org.magnos.data.AbstractData
      org.magnos.data.var.AbstractVar<java.lang.Long>
          org.magnos.data.var.LongVar

All Implemented Interfaces:

Data, Var<java.lang.Long>

public class LongVar
extends AbstractVar<java.lang.Long>

A Var with a long value.

Author:

Philip Diffenderfer

Field Summary

static int

SIZE

Constructor Summary

LongVar()
Instantiates a new LongVar.

LongVar(long value)
Instantiates a new LongVar.

LongVar(Store store, int location)
Instantiates a new LongVar.

LongVar(Store store, int location, long value)
Instantiates a new LongVar.

Method Summary

long	add(long x) Adds the given value to this var and returns the result.
Data	copy() Creates a clone of this data.
long	get() Returns the current value of the var.
java.lang.Long	getValue() Returns the value of this var as it was the last time this variable was read from a store at the location (and maybe with an offset) or as it was set with the setValue method.
long	max(long x) Sets the var to the max between this var and the value.
long	min(long x) Sets the var to the min between this var and the value.
long	mul(long x) Multiplies the given value to this var and returns the result.
void	onRead(int location, Store store) Reads this data from the given store at the given location.
void	onWrite(int location, Store store) Writes this data to the given store at the given location.
void	put(long value) Sets the value of this var and writes it to the store.
void	set(long value) Sets the value of this var, but does not write it to the store.
void	setValue(java.lang.Long value) Sets the value of this var without writing the value to a store.
long	take() Returns the value of this var by first reading it from the store.

Methods inherited from class org.magnos.data.var.AbstractVar

equals, hashCode, putValue, takeValue, toString

Methods inherited from class org.magnos.data.AbstractData

getActualLocation, getLocation, getParent, getSize, getStore, read, read, read, read, setLocation, setParent, setStore, write, write, write, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.magnos.data.Data

getActualLocation, getLocation, getParent, getSize, getStore, read, read, read, read, setLocation, setParent, setStore, write, write, write, write

Field Detail

SIZE

public static final int SIZE

See Also:

Constant Field Values

Constructor Detail

LongVar

public LongVar()

Instantiates a new LongVar.

LongVar

public LongVar(long value)

Instantiates a new LongVar.

Parameters:

value - The initial value.

LongVar

public LongVar(Store store,
               int location)

Instantiates a new LongVar.

Parameters:

store - The intial store.

location - The intial location.

LongVar

public LongVar(Store store,
               int location,
               long value)

Instantiates a new LongVar.

Parameters:

store - The initial store.

location - The initial location.

value - The initial value.

Method Detail

get

public long get()

Returns the current value of the var.

Returns:

The current value.

add

public long add(long x)

Adds the given value to this var and returns the result.

Parameters:

x - The value to add to this var.

Returns:

The result of the operation.

max

public long max(long x)

Sets the var to the max between this var and the value.

Parameters:

x - The value to take the max of with this var.

Returns:

The result of the operation.

min

public long min(long x)

Sets the var to the min between this var and the value.

Parameters:

x - The value to take the min of with this var.

Returns:

The result of the operation.

mul

public long mul(long x)

Multiplies the given value to this var and returns the result.

Parameters:

x - The value to multiply by this var.

Returns:

The result of the operation.

set

public void set(long value)

Sets the value of this var, but does not write it to the store.

Parameters:

value - The new value.

put

public void put(long value)

Sets the value of this var and writes it to the store.

Parameters:

value - The new value.

take

public long take()

Returns the value of this var by first reading it from the store.

Returns:

The value of this var.

getValue

public java.lang.Long getValue()

Returns the value of this var as it was the last time this variable was read from a store at the location (and maybe with an offset) or as it was set with the setValue method.

Returns:

The last value read.

setValue

public void setValue(java.lang.Long value)

Sets the value of this var without writing the value to a store.

Parameters:

value - The new value to set.

onRead

public void onRead(int location,
                   Store store)

Reads this data from the given store at the given location.

Specified by:

onRead in class AbstractData

Parameters:

location - The offset in bytes from the beginning of the store to read from.

store - The store to read from.

onWrite

public void onWrite(int location,
                    Store store)

Writes this data to the given store at the given location.

Specified by:

onWrite in class AbstractData

Parameters:

location - The offset in bytes from the beginning of the store to write to.

store - The store to write to.

copy

public Data copy()

Creates a clone of this data. The resulting data will be of the same type, have the same location, the same store, and have other similar attributes to this type.

Returns:

A clone of this data.