com.mchange.io

Interface IOByteArrayMap

All Known Subinterfaces:

ByteArrayMap, IOSequentialByteArrayMap

public interface IOByteArrayMap

A map of byte[] to byte[] that may be disk or network bound. This interface is not intended to be expressed by implementations supporting duplicate keys.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	containsKey(byte[] key) Returns true iff key is present.
byte[]	get(byte[] key) Gets the byte array associated with key, or none if this key is not present.
IOByteArrayEnumeration	keys() Returns a list of all keys in the hash, provided no inserts or deletes are made while the Enumeration is untraversed.
void	put(byte[] key, byte[] value) Associates the byte[] key with the byte[] value in the hash.
boolean	putNoReplace(byte[] key, byte[] value) Associates the byte[] key with the byte[] value in the hash.
boolean	remove(byte[] key) Removes the key, value pair whose key is the argument.

Method Detail

get

byte[] get(byte[] key)
           throws IOException

Gets the byte array associated with key, or none if this key is not present.

Throws:

IOException

put

void put(byte[] key,
       byte[] value)
         throws IOException

Associates the byte[] key with the byte[] value in the hash. If key is already present in the map, the old value associated with it is replaced by value.

Throws:

IOException

putNoReplace

boolean putNoReplace(byte[] key,
                   byte[] value)
                     throws IOException

Associates the byte[] key with the byte[] value in the hash. Fails (and returns false) if key is already present in the map.

Throws:

IOException

remove

boolean remove(byte[] key)
               throws IOException

Removes the key, value pair whose key is the argument.

Throws:

IOException

containsKey

boolean containsKey(byte[] key)
                    throws IOException

Returns true iff key is present.

Throws:

IOException

keys

IOByteArrayEnumeration keys()
                            throws IOException

Returns a list of all keys in the hash, provided no inserts or deletes are made while the Enumeration is untraversed. If inserts or deletes are made. the behavior is undefined.

Throws:

IOException