Package nl.tue.astar.impl

Class StateCompressor<H extends Head,T extends Tail>

java.lang.Object

nl.tue.astar.impl.StateCompressor<H,T>

All Implemented Interfaces:

Deflater<State<H,T>>, EqualOperation<State<H,T>>, HashOperation<State<H,T>>, Inflater<State<H,T>>

public class StateCompressor<H extends Head,T extends Tail>
extends java.lang.Object
implements Inflater<State<H,T>>, Deflater<State<H,T>>, EqualOperation<State<H,T>>, HashOperation<State<H,T>>

Nested Class Summary

Nested classes/interfaces inherited from interface nl.tue.storage.EqualOperation

EqualOperation.Default<K>

Nested classes/interfaces inherited from interface nl.tue.storage.HashOperation

HashOperation.Default<K>

Constructor Summary

Constructors

Constructor	Description
StateCompressor(StorageAwareDelegate<H,T> delegate)

Method Summary

Modifier and Type	Method	Description
void	deflate(State<H,T> object, java.io.OutputStream stream)	deflate the given object into the provided stream.
boolean	equals(State<H,T> object, CompressedStore<State<H,T>> store, long l)	Check for equality between a given object and a location in the store.
int	getHashCode(State<H,T> state)	Returns the hashCode of the given object.
int	getHashCode(CompressedStore<State<H,T>> store, long l)	Returns the hashCode of the object stored in the store at index l.
int	getMaxByteCount()	the method is called before each call to deflate.
State<H,T>	inflate(java.io.InputStream stream)	read an object from a stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

StateCompressor

public StateCompressor(StorageAwareDelegate<H,T> delegate)

Method Detail

getHashCode

public int getHashCode(State<H,T> state)

Description copied from interface: HashOperation

Returns the hashCode of the given object.

Specified by:

getHashCode in interface HashOperation<H extends Head>

Returns:

getHashCode

public int getHashCode(CompressedStore<State<H,T>> store,
                       long l)
                throws StorageException

Description copied from interface: HashOperation

Returns the hashCode of the object stored in the store at index l.

Specified by:

getHashCode in interface HashOperation<H extends Head>

Returns:

Throws:

StorageException

equals

public boolean equals(State<H,T> object,
                      CompressedStore<State<H,T>> store,
                      long l)
               throws StorageException,
                      java.io.IOException

Description copied from interface: EqualOperation

Check for equality between a given object and a location in the store. Should return true, if and only if the given object is indeed stored at index l in the store.

Specified by:

equals in interface EqualOperation<H extends Head>

Returns:

Throws:

StorageException

java.io.IOException

deflate

public void deflate(State<H,T> object,
                    java.io.OutputStream stream)
             throws java.io.IOException

Description copied from interface: Deflater

deflate the given object into the provided stream. This method should NOT close the stream.

Specified by:

deflate in interface Deflater<H extends Head>

Throws:

java.io.IOException

inflate

public State<H,T> inflate(java.io.InputStream stream)
                         throws java.io.IOException

Description copied from interface: Inflater

read an object from a stream. The inflater should know when to stop reading and should NOT close the stream;

Specified by:

inflate in interface Inflater<H extends Head>

Returns:

Throws:

java.io.IOException

getMaxByteCount

public int getMaxByteCount()

Description copied from interface: Deflater

the method is called before each call to deflate. The call to deflate should not write more than the number of bytes returned by this method! It may write less. If a negative value is returned, then a resizeable buffer is used

Specified by:

getMaxByteCount in interface Deflater<H extends Head>

Returns: