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The Trove library provides high speed regular and primitive
collections for Java.
///////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2001, Eric D. Friedman All Rights Reserved.
// Copyright (c) 2009, Rob Eden All Rights Reserved.
// Copyright (c) 2009, Jeff Randall All Rights Reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
///////////////////////////////////////////////////////////////////////////////
package gnu.trove.map.hash;
import gnu.trove.map.TByteObjectMap;
import gnu.trove.impl.Constants;
import gnu.trove.impl.HashFunctions;
import gnu.trove.impl.hash.*;
import gnu.trove.procedure.TByteObjectProcedure;
import gnu.trove.procedure.TByteProcedure;
import gnu.trove.procedure.TObjectProcedure;
import gnu.trove.iterator.TByteIterator;
import gnu.trove.iterator.TByteObjectIterator;
import gnu.trove.iterator.TPrimitiveIterator;
import gnu.trove.function.TObjectFunction;
import gnu.trove.set.TByteSet;
import gnu.trove.TByteCollection;
import java.io.*;
import java.util.*;
//////////////////////////////////////////////////
// THIS IS A GENERATED CLASS. DO NOT HAND EDIT! //
//////////////////////////////////////////////////
/**
* An open addressed Map implementation for byte keys and Object values.
*
* Created: Sun Nov 4 08:52:45 2001
*
* @author Eric D. Friedman
* @author Rob Eden
* @author Jeff Randall
*/
public class TByteObjectHashMap extends TByteHash implements
TByteObjectMap, Externalizable {
static final long serialVersionUID = 1L;
private final TByteObjectProcedure PUT_ALL_PROC = new TByteObjectProcedure() {
public boolean execute( byte key, V value) {
put( key, value );
return true;
}
};
/** the values of the map */
protected transient V[] _values;
/** the value that represents null in the key set. */
protected byte no_entry_key;
/**
* Creates a new TByteObjectHashMap instance with the default
* capacity and load factor.
*/
public TByteObjectHashMap() {
super();
}
/**
* Creates a new TByteObjectHashMap instance with a prime
* capacity equal to or greater than initialCapacity and
* with the default load factor.
*
* @param initialCapacity an int value
*/
public TByteObjectHashMap( int initialCapacity ) {
super( initialCapacity );
no_entry_key = Constants.DEFAULT_BYTE_NO_ENTRY_VALUE;
}
/**
* Creates a new TByteObjectHashMap instance with a prime
* capacity equal to or greater than initialCapacity and
* with the specified load factor.
*
* @param initialCapacity an int value
* @param loadFactor a float value
*/
public TByteObjectHashMap( int initialCapacity, float loadFactor ) {
super( initialCapacity, loadFactor );
no_entry_key = Constants.DEFAULT_BYTE_NO_ENTRY_VALUE;
}
/**
* Creates a new TByteObjectHashMap instance with a prime
* value at or near the specified capacity and load factor.
*
* @param initialCapacity used to find a prime capacity for the table.
* @param loadFactor used to calculate the threshold over which
* rehashing takes place.
* @param noEntryKey the value used to represent null in the key set.
*/
public TByteObjectHashMap( int initialCapacity, float loadFactor, byte noEntryKey ) {
super( initialCapacity, loadFactor );
no_entry_key = noEntryKey;
}
/**
* Creates a new TByteObjectHashMap that contains the entries
* in the map passed to it.
*
* @param map the TByteObjectMap to be copied.
*/
public TByteObjectHashMap( TByteObjectMap map ) {
this( map.size(), 0.5f, map.getNoEntryKey() );
putAll( map );
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
protected int setUp( int initialCapacity ) {
int capacity;
capacity = super.setUp( initialCapacity );
_values = ( V[] ) new Object[capacity];
return capacity;
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
protected void rehash( int newCapacity ) {
int oldCapacity = _set.length;
byte oldKeys[] = _set;
V oldVals[] = _values;
byte oldStates[] = _states;
_set = new byte[newCapacity];
_values = (V[]) new Object[newCapacity];
_states = new byte[newCapacity];
for ( int i = oldCapacity; i-- > 0; ) {
if( oldStates[i] == FULL ) {
byte o = oldKeys[i];
int index = insertKey(o);
_values[index] = oldVals[i];
}
}
}
// Query Operations
/** {@inheritDoc} */
public byte getNoEntryKey() {
return no_entry_key;
}
/** {@inheritDoc} */
public boolean containsKey( byte key ) {
return contains( key );
}
/** {@inheritDoc} */
public boolean containsValue( Object val ) {
byte[] states = _states;
V[] vals = _values;
// special case null values so that we don't have to
// perform null checks before every call to equals()
if ( null == val ) {
for ( int i = vals.length; i-- > 0; ) {
if ( states[i] == FULL && null == vals[i] ) {
return true;
}
}
} else {
for ( int i = vals.length; i-- > 0; ) {
if ( states[i] == FULL &&
( val == vals[i] || val.equals( vals[i] ) ) ) {
return true;
}
}
} // end of else
return false;
}
/** {@inheritDoc} */
public V get( byte key ) {
int index = index( key );
return index < 0 ? null : _values[index];
}
// Modification Operations
/** {@inheritDoc} */
public V put( byte key, V value ) {
int index = insertKey( key );
return doPut( value, index );
}
/** {@inheritDoc} */
public V putIfAbsent( byte key, V value ) {
int index = insertKey( key );
if ( index < 0 )
return _values[-index - 1];
return doPut( value, index );
}
@SuppressWarnings({"unchecked"})
private V doPut( V value, int index ) {
V previous = null;
boolean isNewMapping = true;
if ( index < 0 ) {
index = -index -1;
previous = _values[index];
isNewMapping = false;
}
_values[index] = value;
if (isNewMapping) {
postInsertHook( consumeFreeSlot );
}
return previous;
}
/** {@inheritDoc} */
public V remove( byte key ) {
V prev = null;
int index = index( key );
if ( index >= 0 ) {
prev = _values[index];
removeAt( index ); // clear key,state; adjust size
}
return prev;
}
/** {@inheritDoc} */
protected void removeAt( int index ) {
_values[index] = null;
super.removeAt( index ); // clear key, state; adjust size
}
// Bulk Operations
/** {@inheritDoc} */
public void putAll( Map map ) {
Set> set = map.entrySet();
for ( Map.Entry entry : set ) {
put( entry.getKey(), entry.getValue() );
}
}
/** {@inheritDoc} */
public void putAll( TByteObjectMap map ){
map.forEachEntry( PUT_ALL_PROC );
}
/** {@inheritDoc} */
public void clear() {
super.clear();
Arrays.fill( _set, 0, _set.length, no_entry_key );
Arrays.fill( _states, 0, _states.length, FREE );
Arrays.fill( _values, 0, _values.length, null );
}
// Views
/** {@inheritDoc} */
public TByteSet keySet() {
return new KeyView();
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
public byte[] keys() {
byte[] keys = new byte[size()];
byte[] k = _set;
byte[] states = _states;
for ( int i = k.length, j = 0; i-- > 0; ) {
if ( states[i] == FULL ) {
keys[j++] = k[i];
}
}
return keys;
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
public byte[] keys( byte[] dest ) {
if ( dest.length < _size ) {
dest = new byte[_size];
}
byte[] k = _set;
byte[] states = _states;
for ( int i = k.length, j = 0; i-- > 0; ) {
if ( states[i] == FULL ) {
dest[j++] = k[i];
}
}
return dest;
}
/** {@inheritDoc} */
public Collection valueCollection() {
return new ValueView();
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
public V[] values() {
V[] vals = ( V[] ) new Object[size()];
V[] v = _values;
byte[] states = _states;
for ( int i = v.length, j = 0; i-- > 0; ) {
if ( states[i] == FULL ) {
vals[j++] = v[i];
}
}
return vals;
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
public V[] values( V[] dest ) {
if ( dest.length < _size ) {
dest = ( V[] ) java.lang.reflect.Array.newInstance(
dest.getClass().getComponentType(), _size);
}
V[] v = _values;
byte[] states = _states;
for ( int i = v.length, j = 0; i-- > 0; ) {
if ( states[i] == FULL ) {
dest[j++] = ( V ) v[i];
}
}
return dest;
}
/** {@inheritDoc} */
public TByteObjectIterator iterator() {
return new TByteObjectHashIterator( this );
}
/** {@inheritDoc} */
public boolean forEachKey( TByteProcedure procedure ) {
return forEach( procedure );
}
/** {@inheritDoc} */
public boolean forEachValue( TObjectProcedure procedure ) {
byte[] states = _states;
V[] values = _values;
for ( int i = values.length; i-- > 0; ) {
if ( states[i] == FULL && ! procedure.execute( values[i] ) ) {
return false;
}
}
return true;
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
public boolean forEachEntry( TByteObjectProcedure procedure ) {
byte[] states = _states;
byte[] keys = _set;
V[] values = _values;
for (int i = keys.length; i-- > 0;) {
if (states[i] == FULL && ! procedure.execute(keys[i],values[i])) {
return false;
}
}
return true;
}
/** {@inheritDoc} */
@SuppressWarnings({"unchecked"})
public boolean retainEntries( TByteObjectProcedure procedure ) {
boolean modified = false;
byte[] states = _states;
byte[] keys = _set;
V[] values = _values;
// Temporarily disable compaction. This is a fix for bug #1738760
tempDisableAutoCompaction();
try {
for ( int i = keys.length; i-- > 0; ) {
if ( states[i] == FULL && ! procedure.execute( keys[i], values[i] ) ) {
removeAt( i );
modified = true;
}
}
}
finally {
reenableAutoCompaction( true );
}
return modified;
}
/** {@inheritDoc} */
public void transformValues( TObjectFunction function ) {
byte[] states = _states;
V[] values = _values;
for ( int i = values.length; i-- > 0; ) {
if ( states[i] == FULL ) {
values[i] = function.execute( values[i] );
}
}
}
// Comparison and hashing
/** {@inheritDoc} */
public boolean equals( Object other ) {
if ( ! ( other instanceof TByteObjectMap ) ) {
return false;
}
TByteObjectMap that = ( TByteObjectMap ) other;
if ( that.size() != this.size() ) {
return false;
}
try {
TByteObjectIterator iter = this.iterator();
while ( iter.hasNext() ) {
iter.advance();
byte key = iter.key();
Object value = iter.value();
if ( value == null ) {
if ( !( that.get( key ) == null && that.containsKey( key ) ) ) {
return false;
}
} else {
if ( !value.equals( that.get( key ) ) ) {
return false;
}
}
}
} catch ( ClassCastException ex ) {
// unused.
}
return true;
}
/** {@inheritDoc} */
public int hashCode() {
int hashcode = 0;
V[] values = _values;
byte[] states = _states;
for ( int i = values.length; i-- > 0; ) {
if ( states[i] == FULL ) {
hashcode += HashFunctions.hash( _set[i] ) ^
( values[i] == null ? 0 : values[i].hashCode() );
}
}
return hashcode;
}
class KeyView implements TByteSet {
/** {@inheritDoc} */
public byte getNoEntryValue() {
return no_entry_key;
}
/** {@inheritDoc} */
public int size() {
return _size;
}
/** {@inheritDoc} */
public boolean isEmpty() {
return _size == 0;
}
/** {@inheritDoc} */
public boolean contains( byte entry ) {
return TByteObjectHashMap.this.containsKey( entry );
}
/** {@inheritDoc} */
public TByteIterator iterator() {
return new TByteHashIterator( TByteObjectHashMap.this );
}
/** {@inheritDoc} */
public byte[] toArray() {
return keys();
}
/** {@inheritDoc} */
public byte[] toArray( byte[] dest ) {
return keys( dest );
}
/** {@inheritDoc} */
public boolean add( byte entry ) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public boolean remove( byte entry ) {
return null != TByteObjectHashMap.this.remove( entry );
}
/** {@inheritDoc} */
public boolean containsAll( Collection collection ) {
for ( Object element : collection ) {
if ( ! TByteObjectHashMap.this.containsKey(
( ( Byte ) element ).byteValue() ) ) {
return false;
}
}
return true;
}
/** {@inheritDoc} */
public boolean containsAll( TByteCollection collection ) {
if ( collection == this ) {
return true;
}
TByteIterator iter = collection.iterator();
while ( iter.hasNext() ) {
if ( ! TByteObjectHashMap.this.containsKey( iter.next() ) ) {
return false;
}
}
return true;
}
/** {@inheritDoc} */
public boolean containsAll( byte[] array ) {
for ( byte element : array ) {
if ( ! TByteObjectHashMap.this.containsKey( element ) ) {
return false;
}
}
return true;
}
/** {@inheritDoc} */
public boolean addAll( Collection collection ) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public boolean addAll( TByteCollection collection ) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public boolean addAll( byte[] array ) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public boolean retainAll( Collection collection ) {
boolean modified = false;
TByteIterator iter = iterator();
while ( iter.hasNext() ) {
//noinspection SuspiciousMethodCalls
if ( ! collection.contains( Byte.valueOf ( iter.next() ) ) ) {
iter.remove();
modified = true;
}
}
return modified;
}
/** {@inheritDoc} */
public boolean retainAll( TByteCollection collection ) {
if ( this == collection ) {
return false;
}
boolean modified = false;
TByteIterator iter = iterator();
while ( iter.hasNext() ) {
if ( ! collection.contains( iter.next() ) ) {
iter.remove();
modified = true;
}
}
return modified;
}
/** {@inheritDoc} */
public boolean retainAll( byte[] array ) {
boolean changed = false;
Arrays.sort( array );
byte[] set = _set;
byte[] states = _states;
for ( int i = set.length; i-- > 0; ) {
if ( states[i] == FULL && ( Arrays.binarySearch( array, set[i] ) < 0) ) {
removeAt( i );
changed = true;
}
}
return changed;
}
/** {@inheritDoc} */
public boolean removeAll( Collection collection ) {
boolean changed = false;
for ( Object element : collection ) {
if ( element instanceof Byte ) {
byte c = ( ( Byte ) element ).byteValue();
if ( remove( c ) ) {
changed = true;
}
}
}
return changed;
}
/** {@inheritDoc} */
public boolean removeAll( TByteCollection collection ) {
if ( collection == this ) {
clear();
return true;
}
boolean changed = false;
TByteIterator iter = collection.iterator();
while ( iter.hasNext() ) {
byte element = iter.next();
if ( remove( element ) ) {
changed = true;
}
}
return changed;
}
/** {@inheritDoc} */
public boolean removeAll( byte[] array ) {
boolean changed = false;
for ( int i = array.length; i-- > 0; ) {
if ( remove(array[i]) ) {
changed = true;
}
}
return changed;
}
/** {@inheritDoc} */
public void clear() {
TByteObjectHashMap.this.clear();
}
/** {@inheritDoc} */
public boolean forEach( TByteProcedure procedure ) {
return TByteObjectHashMap.this.forEachKey( procedure );
}
/** {@inheritDoc) */
public boolean equals( Object other ) {
if (! ( other instanceof TByteSet ) ) {
return false;
}
final TByteSet that = ( TByteSet ) other;
if ( that.size() != this.size() ) {
return false;
}
for ( int i = _states.length; i-- > 0; ) {
if ( _states[i] == FULL ) {
if ( ! that.contains( _set[i] ) ) {
return false;
}
}
}
return true;
}
/** {@inheritDoc} */
public int hashCode() {
int hashcode = 0;
for ( int i = _states.length; i-- > 0; ) {
if ( _states[i] == FULL ) {
hashcode += HashFunctions.hash( _set[i] );
}
}
return hashcode;
}
/** {@inheritDoc} */
public String toString() {
final StringBuilder buf = new StringBuilder("{");
boolean first = true;
for ( int i = _states.length; i-- > 0; ) {
if ( _states[i] == FULL ) {
if ( first ) first = false;
else buf.append( "," );
buf.append( _set[i] );
}
}
return buf.toString();
}
class TByteHashIterator extends THashPrimitiveIterator implements TByteIterator {
/** the collection on which the iterator operates */
private final TByteHash _hash;
/** {@inheritDoc} */
public TByteHashIterator( TByteHash hash ) {
super( hash );
this._hash = hash;
}
/** {@inheritDoc} */
public byte next() {
moveToNextIndex();
return _hash._set[_index];
}
}
}
/** a view onto the values of the map. */
protected class ValueView extends MapBackedView {
@SuppressWarnings({"unchecked"})
public Iterator iterator() {
return new TByteObjectValueHashIterator( TByteObjectHashMap.this ) {
protected V objectAtIndex( int index ) {
return _values[index];
}
};
}
public boolean containsElement( V value ) {
return containsValue( value );
}
public boolean removeElement( V value ) {
V[] values = _values;
byte[] states = _states;
for ( int i = values.length; i-- > 0; ) {
if ( states[i] == FULL ) {
if ( value == values[i] ||
( null != values[i] && values[i].equals( value ) ) ) {
removeAt( i );
return true;
}
}
}
return false;
}
class TByteObjectValueHashIterator extends THashPrimitiveIterator
implements Iterator {
protected final TByteObjectHashMap _map;
public TByteObjectValueHashIterator( TByteObjectHashMap map ) {
super( map );
_map = map;
}
@SuppressWarnings("unchecked")
protected V objectAtIndex( int index ) {
byte[] states = _states;
Object value = _map._values[index];
if ( states[index] != FULL ) {
return null;
}
return ( V ) value;
}
/** {@inheritDoc} */
@SuppressWarnings("unchecked")
public V next() {
moveToNextIndex();
return ( V ) _map._values[_index];
}
}
}
private abstract class MapBackedView extends AbstractSet
implements Set, Iterable {
public abstract Iterator iterator();
public abstract boolean removeElement( E key );
public abstract boolean containsElement( E key );
@SuppressWarnings({"unchecked"})
public boolean contains( Object key ) {
return containsElement( (E) key );
}
@SuppressWarnings({"unchecked"})
public boolean remove( Object o ) {
return removeElement( (E) o );
}
public void clear() {
TByteObjectHashMap.this.clear();
}
public boolean add( E obj ) {
throw new UnsupportedOperationException();
}
public int size() {
return TByteObjectHashMap.this.size();
}
public Object[] toArray() {
Object[] result = new Object[size()];
Iterator e = iterator();
for ( int i = 0; e.hasNext(); i++ ) {
result[i] = e.next();
}
return result;
}
@SuppressWarnings({"unchecked"})
public T[] toArray( T[] a ) {
int size = size();
if ( a.length < size ) {
a = (T[]) java.lang.reflect.Array.newInstance(
a.getClass().getComponentType(), size );
}
Iterator it = iterator();
Object[] result = a;
for ( int i = 0; i < size; i++ ) {
result[i] = it.next();
}
if ( a.length > size ) {
a[size] = null;
}
return a;
}
public boolean isEmpty() {
return TByteObjectHashMap.this.isEmpty();
}
public boolean addAll( Collection collection ) {
throw new UnsupportedOperationException();
}
@SuppressWarnings({"SuspiciousMethodCalls"})
public boolean retainAll( Collection collection ) {
boolean changed = false;
Iterator i = iterator();
while ( i.hasNext() ) {
if ( !collection.contains( i.next() ) ) {
i.remove();
changed = true;
}
}
return changed;
}
}
class TByteObjectHashIterator extends THashPrimitiveIterator
implements TByteObjectIterator {
/** the collection being iterated over */
private final TByteObjectHashMap _map;
/**
* Creates an iterator over the specified map
*
* @param map map to iterate over.
*/
public TByteObjectHashIterator( TByteObjectHashMap map ) {
super( map );
this._map = map;
}
/** {@inheritDoc} */
public void advance() {
moveToNextIndex();
}
/** {@inheritDoc} */
public byte key() {
return _map._set[_index];
}
/** {@inheritDoc} */
public V value() {
return _map._values[_index];
}
/** {@inheritDoc} */
public V setValue( V val ) {
V old = value();
_map._values[_index] = val;
return old;
}
}
public void writeExternal( ObjectOutput out ) throws IOException {
// VERSION
out.writeByte( 0 );
// SUPER
super.writeExternal( out );
// NO_ENTRY_KEY
out.writeByte( no_entry_key );
// NUMBER OF ENTRIES
out.writeInt( _size );
// ENTRIES
for ( int i = _states.length; i-- > 0; ) {
if ( _states[i] == FULL ) {
out.writeByte( _set[i] );
out.writeObject( _values[i] );
}
}
}
@SuppressWarnings({"unchecked"})
public void readExternal( ObjectInput in )
throws IOException, ClassNotFoundException {
// VERSION
in.readByte();
// SUPER
super.readExternal( in );
// NO_ENTRY_KEY
no_entry_key = in.readByte();
// NUMBER OF ENTRIES
int size = in.readInt();
setUp( size );
// ENTRIES
while (size-- > 0) {
byte key = in.readByte();
V val = (V) in.readObject();
put(key, val);
}
}
public String toString() {
final StringBuilder buf = new StringBuilder("{");
forEachEntry(new TByteObjectProcedure() {
private boolean first = true;
public boolean execute(byte key, Object value) {
if ( first ) first = false;
else buf.append( "," );
buf.append(key);
buf.append("=");
buf.append(value);
return true;
}
});
buf.append("}");
return buf.toString();
}
} // TByteObjectHashMap