org.pentaho.di.core.hash

Class ByteArrayHashMap

java.lang.Object

java.util.AbstractMap

org.apache.commons.collections.map.AbstractHashedMap

org.pentaho.di.core.hash.ByteArrayHashMap

All Implemented Interfaces:

Map, org.apache.commons.collections.IterableMap

public class ByteArrayHashMap
extends org.apache.commons.collections.map.AbstractHashedMap

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
ByteArrayHashMap(int initialCapacity, float loadFactor, RowMetaInterface keyMeta) Constructs an empty ByteArrayHashMap with the specified initial capacity and load factor.
ByteArrayHashMap(int initialCapacity, RowMetaInterface keyMeta) Constructs an empty ByteArrayHashMap with the specified initial capacity and the default load factor (0.75).
ByteArrayHashMap(RowMetaInterface keyMeta) Constructs an empty HashMap with the default initial capacity (16) and the default load factor (0.75).

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equalsByteArray(byte[] value, byte[] cmpValue)
byte[]	get(byte[] key) Returns the entry to which the specified key is "mapped", or, in other words, if this index contains an entry that is equal to the given key, or null if this is not the case.
List<byte[]>	getKeys()
void	put(byte[] key, byte[] value)

Methods inherited from class org.apache.commons.collections.map.AbstractHashedMap

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, mapIterator, put, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ByteArrayHashMap

public ByteArrayHashMap(int initialCapacity,
                float loadFactor,
                RowMetaInterface keyMeta)

Constructs an empty ByteArrayHashMap with the specified initial capacity and load factor.

Parameters:

initialCapacity - the initial capacity

loadFactor - the load factor

Throws:

IllegalArgumentException - if the initial capacity is negative or the load factor is nonpositive

ByteArrayHashMap

public ByteArrayHashMap(int initialCapacity,
                RowMetaInterface keyMeta)

Constructs an empty ByteArrayHashMap with the specified initial capacity and the default load factor (0.75).

Parameters:

initialCapacity - the initial capacity.

Throws:

IllegalArgumentException - if the initial capacity is negative.

ByteArrayHashMap

public ByteArrayHashMap(RowMetaInterface keyMeta)

Constructs an empty HashMap with the default initial capacity (16) and the default load factor (0.75).

Method Detail

equalsByteArray

public final boolean equalsByteArray(byte[] value,
                      byte[] cmpValue)

get

public byte[] get(byte[] key)

Returns the entry to which the specified key is "mapped", or, in other words, if this index contains an entry that is equal to the given key, or null if this is not the case.

More formally, if this index contains an entry e such that key.equals(e)), then this method returns e; otherwise it returns null. (There can be at most one such entry.)

Parameters:

key - The key to look up.

Throws:

KettleValueException - in case of a value conversion error

See Also:

#put(Object), #insert(Object)

put

public void put(byte[] key,
       byte[] value)

getKeys

public List<byte[]> getKeys()