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java.lang.Objectgnu.trove.THash
gnu.trove.TPrimitiveHash
gnu.trove.TLongHash
gnu.trove.TLongByteHashMap
public class TLongByteHashMap
An open addressed Map implementation for long keys and byte values. Created: Sun Nov 4 08:52:45 2001
Field Summary | |
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protected byte[] |
_values
the values of the map |
Fields inherited from class gnu.trove.TLongHash |
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_hashingStrategy, _set |
Fields inherited from class gnu.trove.TPrimitiveHash |
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_states, FREE, FULL, REMOVED |
Fields inherited from class gnu.trove.THash |
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_autoCompactionFactor, _autoCompactRemovesRemaining, _free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR |
Constructor Summary | |
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TLongByteHashMap()
Creates a new TLongByteHashMap instance with the default
capacity and load factor. |
|
TLongByteHashMap(int initialCapacity)
Creates a new TLongByteHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor. |
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TLongByteHashMap(int initialCapacity,
float loadFactor)
Creates a new TLongByteHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor. |
|
TLongByteHashMap(int initialCapacity,
float loadFactor,
TLongHashingStrategy strategy)
Creates a new TLongByteHashMap instance with a prime
value at or near the specified capacity and load factor. |
|
TLongByteHashMap(int initialCapacity,
TLongHashingStrategy strategy)
Creates a new TLongByteHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime. |
|
TLongByteHashMap(TLongHashingStrategy strategy)
Creates a new TLongByteHashMap instance with the default
capacity and load factor. |
Method Summary | |
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byte |
adjustOrPutValue(long key,
byte adjust_amount,
byte put_amount)
Adjusts the primitive value mapped to the key if the key is present in the map. |
boolean |
adjustValue(long key,
byte amount)
Adjusts the primitive value mapped to key. |
void |
clear()
Empties the map. |
java.lang.Object |
clone()
|
boolean |
containsKey(long key)
checks for the present of key in the keys of the map. |
boolean |
containsValue(byte val)
checks for the presence of val in the values of the map. |
boolean |
equals(java.lang.Object other)
Compares this map with another map for equality of their stored entries. |
boolean |
forEachEntry(TLongByteProcedure procedure)
Executes procedure for each key/value entry in the map. |
boolean |
forEachKey(TLongProcedure procedure)
Executes procedure for each key in the map. |
boolean |
forEachValue(TByteProcedure procedure)
Executes procedure for each value in the map. |
byte |
get(long key)
retrieves the value for key |
byte[] |
getValues()
Returns the values of the map. |
int |
hashCode()
|
boolean |
increment(long key)
Increments the primitive value mapped to key by 1 |
TLongByteIterator |
iterator()
|
long[] |
keys()
returns the keys of the map. |
long[] |
keys(long[] a)
returns the keys of the map. |
byte |
put(long key,
byte value)
Inserts a key/value pair into the map. |
byte |
putIfAbsent(long key,
byte value)
Inserts a key/value pair into the map if the specified key is not already associated with a value. |
void |
readExternal(java.io.ObjectInput in)
|
protected void |
rehash(int newCapacity)
rehashes the map to the new capacity. |
byte |
remove(long key)
Deletes a key/value pair from the map. |
protected void |
removeAt(int index)
removes the mapping at index from the map. |
boolean |
retainEntries(TLongByteProcedure procedure)
Retains only those entries in the map for which the procedure returns a true value. |
protected int |
setUp(int initialCapacity)
initializes the hashtable to a prime capacity which is at least initialCapacity + 1. |
void |
transformValues(TByteFunction function)
Transform the values in this map using function. |
void |
writeExternal(java.io.ObjectOutput out)
|
Methods inherited from class gnu.trove.TLongHash |
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computeHashCode, contains, forEach, index, insertionIndex |
Methods inherited from class gnu.trove.TPrimitiveHash |
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capacity |
Methods inherited from class gnu.trove.THash |
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calculateGrownCapacity, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected transient byte[] _values
Constructor Detail |
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public TLongByteHashMap()
TLongByteHashMap
instance with the default
capacity and load factor.
public TLongByteHashMap(int initialCapacity)
TLongByteHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity
- an int
valuepublic TLongByteHashMap(int initialCapacity, float loadFactor)
TLongByteHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity
- an int
valueloadFactor
- a float
valuepublic TLongByteHashMap(TLongHashingStrategy strategy)
TLongByteHashMap
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.public TLongByteHashMap(int initialCapacity, TLongHashingStrategy strategy)
TLongByteHashMap
instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
initialCapacity
- an int
valuestrategy
- used to compute hash codes and to compare keys.public TLongByteHashMap(int initialCapacity, float loadFactor, TLongHashingStrategy strategy)
TLongByteHashMap
instance with a prime
value at or near the specified capacity and load factor.
initialCapacity
- used to find a prime capacity for the table.loadFactor
- used to calculate the threshold over which
rehashing takes place.strategy
- used to compute hash codes and to compare keys.Method Detail |
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public java.lang.Object clone()
clone
in class TLongHash
public TLongByteIterator iterator()
protected int setUp(int initialCapacity)
setUp
in class TLongHash
initialCapacity
- an int
value
public byte put(long key, byte value)
key
- an long
valuevalue
- an byte
value
public byte putIfAbsent(long key, byte value)
key
- an long
valuevalue
- an byte
value
protected void rehash(int newCapacity)
rehash
in class THash
newCapacity
- an int
valuepublic byte get(long key)
key
- an long
value
public void clear()
clear
in class THash
public byte remove(long key)
key
- an long
value
byte
value, or (long)0 if no mapping for key existspublic boolean equals(java.lang.Object other)
equals
in class java.lang.Object
other
- an Object
value
boolean
valuepublic int hashCode()
hashCode
in class java.lang.Object
protected void removeAt(int index)
removeAt
in class TLongHash
index
- an int
valuepublic byte[] getValues()
Collection
valuepublic long[] keys()
Set
valuepublic long[] keys(long[] a)
a
- the array into which the elements of the list are to
be stored, if it is big enough; otherwise, a new array of the
same type is allocated for this purpose.
Set
valuepublic boolean containsValue(byte val)
val
- an byte
value
boolean
valuepublic boolean containsKey(long key)
key
- an long
value
boolean
valuepublic boolean forEachKey(TLongProcedure procedure)
procedure
- a TLongProcedure
value
public boolean forEachValue(TByteProcedure procedure)
procedure
- a TByteProcedure
value
public boolean forEachEntry(TLongByteProcedure procedure)
procedure
- a TOLongByteProcedure
value
public boolean retainEntries(TLongByteProcedure procedure)
procedure
- determines which entries to keep
public void transformValues(TByteFunction function)
function
- a TByteFunction
valuepublic boolean increment(long key)
key
- the key of the value to increment
public boolean adjustValue(long key, byte amount)
key
- the key of the value to incrementamount
- the amount to adjust the value by.
public byte adjustOrPutValue(long key, byte adjust_amount, byte put_amount)
key
- the key of the value to incrementadjust_amount
- the amount to adjust the value byput_amount
- the value put into the map if the key is not initial present
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
writeExternal
in interface java.io.Externalizable
writeExternal
in class THash
java.io.IOException
public void readExternal(java.io.ObjectInput in) throws java.io.IOException, java.lang.ClassNotFoundException
readExternal
in interface java.io.Externalizable
readExternal
in class THash
java.io.IOException
java.lang.ClassNotFoundException
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