Package 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

    Modifier and Type
    Method
    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 Details

    • 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