Package gnu.trove
Class TIntLongHashMap
- java.lang.Object
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- gnu.trove.THash
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- gnu.trove.TPrimitiveHash
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- gnu.trove.TIntHash
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- gnu.trove.TIntLongHashMap
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- All Implemented Interfaces:
TIntHashingStrategy,java.io.Externalizable,java.io.Serializable,java.lang.Cloneable
public class TIntLongHashMap extends TIntHash implements java.io.Externalizable
An open addressed Map implementation for int keys and long values. Created: Sun Nov 4 08:52:45 2001- Author:
- Eric D. Friedman
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected long[]_valuesthe values of the map-
Fields inherited from class gnu.trove.TIntHash
_hashingStrategy, _set
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Fields inherited from class gnu.trove.TPrimitiveHash
_states, FREE, FULL, REMOVED
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Fields inherited from class gnu.trove.THash
_autoCompactionFactor, _autoCompactRemovesRemaining, _free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR
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Constructor Summary
Constructors Constructor Description TIntLongHashMap()Creates a newTIntLongHashMapinstance with the default capacity and load factor.TIntLongHashMap(int initialCapacity)Creates a newTIntLongHashMapinstance with a prime capacity equal to or greater than initialCapacity and with the default load factor.TIntLongHashMap(int initialCapacity, float loadFactor)Creates a newTIntLongHashMapinstance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.TIntLongHashMap(int initialCapacity, float loadFactor, TIntHashingStrategy strategy)Creates a newTIntLongHashMapinstance with a prime value at or near the specified capacity and load factor.TIntLongHashMap(int initialCapacity, TIntHashingStrategy strategy)Creates a newTIntLongHashMapinstance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.TIntLongHashMap(TIntHashingStrategy strategy)Creates a newTIntLongHashMapinstance with the default capacity and load factor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description longadjustOrPutValue(int key, long adjust_amount, long put_amount)Adjusts the primitive value mapped to the key if the key is present in the map.booleanadjustValue(int key, long amount)Adjusts the primitive value mapped to key.voidclear()Empties the map.java.lang.Objectclone()booleancontainsKey(int key)checks for the present of key in the keys of the map.booleancontainsValue(long val)checks for the presence of val in the values of the map.booleanequals(java.lang.Object other)Compares this map with another map for equality of their stored entries.booleanforEachEntry(TIntLongProcedure procedure)Executes procedure for each key/value entry in the map.booleanforEachKey(TIntProcedure procedure)Executes procedure for each key in the map.booleanforEachValue(TLongProcedure procedure)Executes procedure for each value in the map.longget(int key)retrieves the value for keylong[]getValues()Returns the values of the map.inthashCode()booleanincrement(int key)Increments the primitive value mapped to key by 1TIntLongIteratoriterator()int[]keys()returns the keys of the map.int[]keys(int[] a)returns the keys of the map.longput(int key, long value)Inserts a key/value pair into the map.voidputAll(TIntLongHashMap map)Put all the entries from the given map into this map.longputIfAbsent(int key, long value)Inserts a key/value pair into the map if the specified key is not already associated with a value.voidreadExternal(java.io.ObjectInput in)protected voidrehash(int newCapacity)rehashes the map to the new capacity.longremove(int key)Deletes a key/value pair from the map.protected voidremoveAt(int index)removes the mapping at index from the map.booleanretainEntries(TIntLongProcedure procedure)Retains only those entries in the map for which the procedure returns a true value.protected intsetUp(int initialCapacity)initializes the hashtable to a prime capacity which is at least initialCapacity + 1.java.lang.StringtoString()voidtransformValues(TLongFunction function)Transform the values in this map using function.voidwriteExternal(java.io.ObjectOutput out)-
Methods inherited from class gnu.trove.TIntHash
computeHashCode, contains, forEach, index, insertionIndex
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Methods inherited from class gnu.trove.TPrimitiveHash
capacity
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Methods inherited from class gnu.trove.THash
calculateGrownCapacity, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize
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Constructor Detail
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TIntLongHashMap
public TIntLongHashMap()
Creates a newTIntLongHashMapinstance with the default capacity and load factor.
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TIntLongHashMap
public TIntLongHashMap(int initialCapacity)
Creates a newTIntLongHashMapinstance with a prime capacity equal to or greater than initialCapacity and with the default load factor.- Parameters:
initialCapacity- anintvalue
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TIntLongHashMap
public TIntLongHashMap(int initialCapacity, float loadFactor)Creates a newTIntLongHashMapinstance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.- Parameters:
initialCapacity- anintvalueloadFactor- afloatvalue
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TIntLongHashMap
public TIntLongHashMap(TIntHashingStrategy strategy)
Creates a newTIntLongHashMapinstance with the default capacity and load factor.- Parameters:
strategy- used to compute hash codes and to compare keys.
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TIntLongHashMap
public TIntLongHashMap(int initialCapacity, TIntHashingStrategy strategy)Creates a newTIntLongHashMapinstance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.- Parameters:
initialCapacity- anintvaluestrategy- used to compute hash codes and to compare keys.
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TIntLongHashMap
public TIntLongHashMap(int initialCapacity, float loadFactor, TIntHashingStrategy strategy)Creates a newTIntLongHashMapinstance with a prime value at or near the specified capacity and load factor.- Parameters:
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.
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Method Detail
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clone
public java.lang.Object clone()
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iterator
public TIntLongIterator iterator()
- Returns:
- a TIntLongIterator with access to this map's keys and values
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setUp
protected int setUp(int initialCapacity)
initializes the hashtable to a prime capacity which is at least initialCapacity + 1.
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put
public long put(int key, long value)Inserts a key/value pair into the map.- Parameters:
key- anintvaluevalue- anlongvalue- Returns:
- the previous value associated with key, or (int)0 if none was found.
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putIfAbsent
public long putIfAbsent(int key, long value)Inserts a key/value pair into the map if the specified key is not already associated with a value.- Parameters:
key- anintvaluevalue- anlongvalue- Returns:
- the previous value associated with key, or (int)0 if none was found.
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putAll
public void putAll(TIntLongHashMap map)
Put all the entries from the given map into this map.- Parameters:
map- The map from which entries will be obtained to put into this map.
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rehash
protected void rehash(int newCapacity)
rehashes the map to the new capacity.
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get
public long get(int key)
retrieves the value for key- Parameters:
key- anintvalue- Returns:
- the value of key or (int)0 if no such mapping exists.
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remove
public long remove(int key)
Deletes a key/value pair from the map.- Parameters:
key- anintvalue- Returns:
- an
longvalue, or (int)0 if no mapping for key exists
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equals
public boolean equals(java.lang.Object other)
Compares this map with another map for equality of their stored entries.- Overrides:
equalsin classjava.lang.Object- Parameters:
other- anObjectvalue- Returns:
- a
booleanvalue
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hashCode
public int hashCode()
- Overrides:
hashCodein classjava.lang.Object
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removeAt
protected void removeAt(int index)
removes the mapping at index from the map.
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getValues
public long[] getValues()
Returns the values of the map.- Returns:
- a
Collectionvalue
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keys
public int[] keys()
returns the keys of the map.- Returns:
- a
Setvalue
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keys
public int[] keys(int[] a)
returns the keys of the map.- Parameters:
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.- Returns:
- a
Setvalue
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containsValue
public boolean containsValue(long val)
checks for the presence of val in the values of the map.- Parameters:
val- anlongvalue- Returns:
- a
booleanvalue
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containsKey
public boolean containsKey(int key)
checks for the present of key in the keys of the map.- Parameters:
key- anintvalue- Returns:
- a
booleanvalue
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forEachKey
public boolean forEachKey(TIntProcedure procedure)
Executes procedure for each key in the map.- Parameters:
procedure- aTIntProcedurevalue- 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(TLongProcedure procedure)
Executes procedure for each value in the map.- Parameters:
procedure- aTLongProcedurevalue- 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(TIntLongProcedure procedure)
Executes procedure for each key/value entry in the map.- Parameters:
procedure- aTOIntLongProcedurevalue- Returns:
- false if the loop over the entries terminated because the procedure returned false for some entry.
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retainEntries
public boolean retainEntries(TIntLongProcedure procedure)
Retains only those entries in the map for which the procedure returns a true value.- Parameters:
procedure- determines which entries to keep- Returns:
- true if the map was modified.
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transformValues
public void transformValues(TLongFunction function)
Transform the values in this map using function.- Parameters:
function- aTLongFunctionvalue
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increment
public boolean increment(int key)
Increments the primitive value mapped to key by 1- 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(int key, long amount)Adjusts the primitive value mapped to key.- 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 long adjustOrPutValue(int key, long adjust_amount, long 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.- 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
- Since:
- 2.0b1
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writeExternal
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException- Specified by:
writeExternalin interfacejava.io.Externalizable- Overrides:
writeExternalin classTHash- 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:
readExternalin interfacejava.io.Externalizable- Overrides:
readExternalin classTHash- Throws:
java.io.IOExceptionjava.lang.ClassNotFoundException
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toString
public java.lang.String toString()
- Overrides:
toStringin classjava.lang.Object
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