Package gnu.trove.map.hash
Class TLongByteHashMap
- java.lang.Object
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- gnu.trove.impl.hash.THash
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- gnu.trove.impl.hash.TPrimitiveHash
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- gnu.trove.impl.hash.TLongByteHash
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- gnu.trove.map.hash.TLongByteHashMap
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- All Implemented Interfaces:
TLongByteMap
,java.io.Externalizable
,java.io.Serializable
public class TLongByteHashMap extends gnu.trove.impl.hash.TLongByteHash implements TLongByteMap, java.io.Externalizable
An open addressed Map implementation for long keys and byte values.- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected class
TLongByteHashMap.TKeyView
a view onto the keys of the map.protected class
TLongByteHashMap.TValueView
a view onto the values of the map.
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Field Summary
Fields Modifier and Type Field Description protected byte[]
_values
the values of the map
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Constructor Summary
Constructors Constructor Description TLongByteHashMap()
Creates a newTLongByteHashMap
instance with the default capacity and load factor.TLongByteHashMap(int initialCapacity)
Creates a newTLongByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.TLongByteHashMap(int initialCapacity, float loadFactor)
Creates a newTLongByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.TLongByteHashMap(int initialCapacity, float loadFactor, long noEntryKey, byte noEntryValue)
Creates a newTLongByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.TLongByteHashMap(long[] keys, byte[] values)
Creates a newTLongByteHashMap
instance containing all of the entries in the map passed in.TLongByteHashMap(TLongByteMap map)
Creates a newTLongByteHashMap
instance containing all of the entries in the map passed in.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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 collection.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)
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 keyint
hashCode()
boolean
increment(long key)
Increments the primitive value mapped to key by 1boolean
isEmpty()
Tells whether this set is currently holding any elements.TLongByteIterator
iterator()
long[]
keys()
Returns the keys of the map as an array of long values.long[]
keys(long[] array)
Returns the keys of the map.TLongSet
keySet()
Returns the keys of the map as a TLongSetbyte
put(long key, byte value)
Inserts a key/value pair into the map.void
putAll(TLongByteMap map)
Put all the entries from the given map into this map.void
putAll(java.util.Map<? extends java.lang.Long,? extends java.lang.Byte> map)
Put all the entries from the given Map into this 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 set.byte
remove(long key)
Deletes a key/value pair from the map.protected void
removeAt(int index)
Releases the element currently stored at index.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.java.lang.String
toString()
void
transformValues(TByteFunction function)
Transform the values in this map using function.TByteCollection
valueCollection()
Returns the values of the map as a TByteCollectionbyte[]
values()
Returns the values of the map as an array of #e# values.byte[]
values(byte[] array)
Returns the values of the map using an existing array.void
writeExternal(java.io.ObjectOutput out)
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Methods inherited from class gnu.trove.impl.hash.TLongByteHash
contains, forEach, getNoEntryKey, getNoEntryValue, index, insertKey, XinsertKey
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Methods inherited from class gnu.trove.impl.hash.THash
calculateGrownCapacity, compact, computeMaxSize, computeNextAutoCompactionAmount, ensureCapacity, getAutoCompactionFactor, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface gnu.trove.map.TLongByteMap
getNoEntryKey, getNoEntryValue, size
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Constructor Detail
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TLongByteHashMap
public TLongByteHashMap()
Creates a newTLongByteHashMap
instance with the default capacity and load factor.
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TLongByteHashMap
public TLongByteHashMap(int initialCapacity)
Creates a newTLongByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.- Parameters:
initialCapacity
- anint
value
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TLongByteHashMap
public TLongByteHashMap(int initialCapacity, float loadFactor)
Creates a newTLongByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.- Parameters:
initialCapacity
- anint
valueloadFactor
- afloat
value
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TLongByteHashMap
public TLongByteHashMap(int initialCapacity, float loadFactor, long noEntryKey, byte noEntryValue)
Creates a newTLongByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.- Parameters:
initialCapacity
- anint
valueloadFactor
- afloat
valuenoEntryKey
- along
value that represents null for the Key set.noEntryValue
- abyte
value that represents null for the Value set.
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TLongByteHashMap
public TLongByteHashMap(long[] keys, byte[] values)
Creates a newTLongByteHashMap
instance containing all of the entries in the map passed in.- Parameters:
keys
- a long array containing the keys for the matching values.values
- a byte array containing the values.
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TLongByteHashMap
public TLongByteHashMap(TLongByteMap map)
Creates a newTLongByteHashMap
instance containing all of the entries in the map passed in.- Parameters:
map
- a TLongByteMap that will be duplicated.
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Method Detail
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setUp
protected int setUp(int initialCapacity)
initializes the hashtable to a prime capacity which is at least initialCapacity + 1.- Overrides:
setUp
in classgnu.trove.impl.hash.TLongByteHash
- Parameters:
initialCapacity
- anint
value- Returns:
- the actual capacity chosen
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rehash
protected void rehash(int newCapacity)
Rehashes the set.- Specified by:
rehash
in classgnu.trove.impl.hash.THash
- Parameters:
newCapacity
- anint
value
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put
public byte put(long key, byte value)
Inserts a key/value pair into the map.- Specified by:
put
in interfaceTLongByteMap
- Parameters:
key
- anlong
valuevalue
- anbyte
value- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TLongByteMap.getNoEntryValue()
).
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putIfAbsent
public 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.- Specified by:
putIfAbsent
in interfaceTLongByteMap
- Parameters:
key
- anlong
valuevalue
- anbyte
value- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TLongByteMap.getNoEntryValue()
).
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putAll
public void putAll(java.util.Map<? extends java.lang.Long,? extends java.lang.Byte> map)
Put all the entries from the given Map into this map.- Specified by:
putAll
in interfaceTLongByteMap
- Parameters:
map
- The Map from which entries will be obtained to put into this map.
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putAll
public void putAll(TLongByteMap map)
Put all the entries from the given map into this map.- Specified by:
putAll
in interfaceTLongByteMap
- Parameters:
map
- The map from which entries will be obtained to put into this map.
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get
public byte get(long key)
Retrieves the value for key- Specified by:
get
in interfaceTLongByteMap
- Parameters:
key
- anlong
value- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TLongByteMap.getNoEntryValue()
).
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clear
public void clear()
Empties the collection.- Specified by:
clear
in interfaceTLongByteMap
- Overrides:
clear
in classgnu.trove.impl.hash.THash
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isEmpty
public boolean isEmpty()
Tells whether this set is currently holding any elements.- Specified by:
isEmpty
in interfaceTLongByteMap
- Overrides:
isEmpty
in classgnu.trove.impl.hash.THash
- Returns:
- a
boolean
value
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remove
public byte remove(long key)
Deletes a key/value pair from the map.- Specified by:
remove
in interfaceTLongByteMap
- Parameters:
key
- anlong
value- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TLongByteMap.getNoEntryValue()
).
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removeAt
protected void removeAt(int index)
Releases the element currently stored at index.- Overrides:
removeAt
in classgnu.trove.impl.hash.TLongByteHash
- Parameters:
index
- anint
value
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keySet
public TLongSet keySet()
Returns the keys of the map as a TLongSet- Specified by:
keySet
in interfaceTLongByteMap
- Returns:
- the keys of the map as a TLongSet
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keys
public long[] keys()
Returns the keys of the map as an array of long values.- Specified by:
keys
in interfaceTLongByteMap
- Returns:
- the keys of the map as an array of long values.
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keys
public long[] keys(long[] array)
Returns the keys of the map.- Specified by:
keys
in interfaceTLongByteMap
- Parameters:
array
- 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.- Returns:
- the keys of the map as an array.
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valueCollection
public TByteCollection valueCollection()
Returns the values of the map as a TByteCollection- Specified by:
valueCollection
in interfaceTLongByteMap
- Returns:
- the values of the map as a TByteCollection
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values
public byte[] values()
Returns the values of the map as an array of #e# values.- Specified by:
values
in interfaceTLongByteMap
- Returns:
- the values of the map as an array of #e# values.
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values
public byte[] values(byte[] array)
Returns the values of the map using an existing array.- Specified by:
values
in interfaceTLongByteMap
- Parameters:
array
- 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.- Returns:
- the values of the map as an array of #e# values.
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containsValue
public boolean containsValue(byte val)
Checks for the presence of val in the values of the map.- Specified by:
containsValue
in interfaceTLongByteMap
- Parameters:
val
- anbyte
value- Returns:
- a
boolean
value
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containsKey
public boolean containsKey(long key)
Checks for the present of key in the keys of the map.- Specified by:
containsKey
in interfaceTLongByteMap
- Parameters:
key
- anlong
value- Returns:
- a
boolean
value
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iterator
public TLongByteIterator iterator()
- Specified by:
iterator
in interfaceTLongByteMap
- Returns:
- a TLongByteIterator with access to this map's keys and values
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forEachKey
public boolean forEachKey(TLongProcedure procedure)
Executes procedure for each key in the map.- Specified by:
forEachKey
in interfaceTLongByteMap
- Parameters:
procedure
- aTLongProcedure
value- Returns:
- false if the loop over the keys terminated because the procedure returned false for some key.
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forEachValue
public boolean forEachValue(TByteProcedure procedure)
Executes procedure for each value in the map.- Specified by:
forEachValue
in interfaceTLongByteMap
- Parameters:
procedure
- aT#F#Procedure
value- Returns:
- false if the loop over the values terminated because the procedure returned false for some value.
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forEachEntry
public boolean forEachEntry(TLongByteProcedure procedure)
Executes procedure for each key/value entry in the map.- Specified by:
forEachEntry
in interfaceTLongByteMap
- Parameters:
procedure
- aTOLongByteProcedure
value- Returns:
- false if the loop over the entries terminated because the procedure returned false for some entry.
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transformValues
public void transformValues(TByteFunction function)
Transform the values in this map using function.- Specified by:
transformValues
in interfaceTLongByteMap
- Parameters:
function
- aTByteFunction
value
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retainEntries
public boolean retainEntries(TLongByteProcedure procedure)
Retains only those entries in the map for which the procedure returns a true value.- Specified by:
retainEntries
in interfaceTLongByteMap
- Parameters:
procedure
- determines which entries to keep- Returns:
- true if the map was modified.
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increment
public boolean increment(long key)
Increments the primitive value mapped to key by 1- Specified by:
increment
in interfaceTLongByteMap
- Parameters:
key
- the key of the value to increment- Returns:
- true if a mapping was found and modified.
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adjustValue
public boolean adjustValue(long key, byte amount)
Adjusts the primitive value mapped to key.- Specified by:
adjustValue
in interfaceTLongByteMap
- Parameters:
key
- the key of the value to incrementamount
- the amount to adjust the value by.- Returns:
- true if a mapping was found and modified.
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adjustOrPutValue
public 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. Otherwise, the initial_value is put in the map.- Specified by:
adjustOrPutValue
in interfaceTLongByteMap
- Parameters:
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- Returns:
- the value present in the map after the adjustment or put operation
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equals
public boolean equals(java.lang.Object other)
- Overrides:
equals
in classjava.lang.Object
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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writeExternal
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
- Specified by:
writeExternal
in interfacejava.io.Externalizable
- Overrides:
writeExternal
in classgnu.trove.impl.hash.TLongByteHash
- Throws:
java.io.IOException
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readExternal
public void readExternal(java.io.ObjectInput in) throws java.io.IOException, java.lang.ClassNotFoundException
- Specified by:
readExternal
in interfacejava.io.Externalizable
- Overrides:
readExternal
in classgnu.trove.impl.hash.TLongByteHash
- Throws:
java.io.IOException
java.lang.ClassNotFoundException
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