com.oracle.svm.core.jdk

Class AbstractUninterruptibleHashtable

java.lang.Object

com.oracle.svm.core.jdk.AbstractUninterruptibleHashtable

All Implemented Interfaces:

UninterruptibleHashtable

public abstract class AbstractUninterruptibleHashtable
extends Object
implements UninterruptibleHashtable

An uninterruptible hashtable with a fixed size that uses chaining in case of a collision.

Constructor Summary

Constructors

Constructor and Description
AbstractUninterruptibleHashtable()
AbstractUninterruptibleHashtable(int primeLength)

Method Summary

Modifier and Type	Method and Description
void	clear() Clear all entries from map.
protected abstract UninterruptibleEntry	copyToHeap(UninterruptibleEntry valueOnStack)
protected UninterruptibleEntry	copyToHeap(UninterruptibleEntry pointerOnStack, org.graalvm.word.UnsignedWord sizeToAlloc)
protected abstract UninterruptibleEntry[]	createTable(int length)
protected void	free(UninterruptibleEntry entry)
UninterruptibleEntry	get(UninterruptibleEntry valueOnStack) Returns the matching value for valueOnStack from the hashtable.
UninterruptibleEntry	getOrPut(UninterruptibleEntry valueOnStack) If the hashtable contains an existing entry that matches valueOnStack, then this existing entry will be returned and no value will be inserted.
int	getSize() Gets the number of entries that are in the hashtable.
UninterruptibleEntry[]	getTable() Returns the internal array of the hashtable.
protected UninterruptibleEntry	insertEntry(UninterruptibleEntry valueOnStack)
protected abstract boolean	isEqual(UninterruptibleEntry a, UninterruptibleEntry b)
boolean	putIfAbsent(UninterruptibleEntry valueOnStack) Tries to insert valueOnStack into the hashtable.
void	teardown() Teardown hashtable.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractUninterruptibleHashtable

public AbstractUninterruptibleHashtable()

AbstractUninterruptibleHashtable

public AbstractUninterruptibleHashtable(int primeLength)

Method Detail

createTable

protected abstract UninterruptibleEntry[] createTable(int length)

isEqual

protected abstract boolean isEqual(UninterruptibleEntry a,
                                   UninterruptibleEntry b)

copyToHeap

protected abstract UninterruptibleEntry copyToHeap(UninterruptibleEntry valueOnStack)

copyToHeap

protected UninterruptibleEntry copyToHeap(UninterruptibleEntry pointerOnStack,
                                          org.graalvm.word.UnsignedWord sizeToAlloc)

free

protected void free(UninterruptibleEntry entry)

insertEntry

protected UninterruptibleEntry insertEntry(UninterruptibleEntry valueOnStack)

getSize

public int getSize()

Description copied from interface: UninterruptibleHashtable

Gets the number of entries that are in the hashtable.

Specified by:

getSize in interface UninterruptibleHashtable

getTable

public UninterruptibleEntry[] getTable()

Description copied from interface: UninterruptibleHashtable

Returns the internal array of the hashtable.

Specified by:

getTable in interface UninterruptibleHashtable

get

public UninterruptibleEntry get(UninterruptibleEntry valueOnStack)

Description copied from interface: UninterruptibleHashtable

Returns the matching value for valueOnStack from the hashtable. If there is no matching value in the hashtable, a null pointer is returned.

Specified by:

get in interface UninterruptibleHashtable

getOrPut

public UninterruptibleEntry getOrPut(UninterruptibleEntry valueOnStack)

Description copied from interface: UninterruptibleHashtable

If the hashtable contains an existing entry that matches valueOnStack, then this existing entry will be returned and no value will be inserted. If there wasn't already a matching entry, this method tries to create and insert a new entry hashtable. If an error occurred while inserting the entry, a null pointer is returned instead.

Specified by:

getOrPut in interface UninterruptibleHashtable

putIfAbsent

public boolean putIfAbsent(UninterruptibleEntry valueOnStack)

Description copied from interface: UninterruptibleHashtable

Tries to insert valueOnStack into the hashtable. Returns false if there was already a matching entry in the hashtable or if an error occurred while insert the entry. Returns true if the entry was inserted successfully.

Specified by:

putIfAbsent in interface UninterruptibleHashtable

clear

public void clear()

Description copied from interface: UninterruptibleHashtable

Clear all entries from map.

Specified by:

clear in interface UninterruptibleHashtable

teardown

public void teardown()

Description copied from interface: UninterruptibleHashtable

Teardown hashtable.

Specified by:

teardown in interface UninterruptibleHashtable