/////////////////////////////////////////////////////////////////////////////// // 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.custom_hash; import gnu.trove.TCharCollection; import gnu.trove.function.TCharFunction; import gnu.trove.impl.Constants; import gnu.trove.impl.HashFunctions; import gnu.trove.impl.hash.TCustomObjectHash; import gnu.trove.impl.hash.THash; import gnu.trove.iterator.TCharIterator; import gnu.trove.iterator.TObjectCharIterator; import gnu.trove.iterator.hash.TObjectHashIterator; import gnu.trove.map.TObjectCharMap; import gnu.trove.procedure.TCharProcedure; import gnu.trove.procedure.TObjectCharProcedure; import gnu.trove.procedure.TObjectProcedure; import gnu.trove.strategy.HashingStrategy; import java.io.*; import java.util.*; ////////////////////////////////////////////////// // THIS IS A GENERATED CLASS. DO NOT HAND EDIT! // ////////////////////////////////////////////////// /** * An open addressed Map implementation for Object keys and char values. * * @author Rob Eden */ public class TObjectCharCustomHashMap<K> extends TCustomObjectHash<K> implements TObjectCharMap<K>, Externalizable { static final long serialVersionUID = 1L; private final TObjectCharProcedure<K> PUT_ALL_PROC = new TObjectCharProcedure<K>() { public boolean execute(K key, char value) { put(key, value); return true; } }; /** the values of the map */ protected transient char[] _values; /** the value that represents null */ protected char no_entry_value; /** FOR EXTERNALIZATION ONLY!!! */ public TObjectCharCustomHashMap() {} /** * Creates a new <code>TObjectCharHashMap</code> instance with the default * capacity and load factor. */ public TObjectCharCustomHashMap( HashingStrategy<? super K> strategy ) { super( strategy ); no_entry_value = Constants.DEFAULT_CHAR_NO_ENTRY_VALUE; } /** * Creates a new <code>TObjectCharHashMap</code> instance with a prime * capacity equal to or greater than <tt>initialCapacity</tt> and * with the default load factor. * * @param initialCapacity an <code>int</code> value */ public TObjectCharCustomHashMap( HashingStrategy<? super K> strategy, int initialCapacity ) { super( strategy, initialCapacity ); no_entry_value = Constants.DEFAULT_CHAR_NO_ENTRY_VALUE; } /** * Creates a new <code>TObjectCharHashMap</code> instance with a prime * capacity equal to or greater than <tt>initialCapacity</tt> and * with the specified load factor. * * @param initialCapacity an <code>int</code> value * @param loadFactor a <code>float</code> value */ public TObjectCharCustomHashMap( HashingStrategy<? super K> strategy, int initialCapacity, float loadFactor ) { super( strategy, initialCapacity, loadFactor ); no_entry_value = Constants.DEFAULT_CHAR_NO_ENTRY_VALUE; } /** * Creates a new <code>TObjectCharHashMap</code> 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 noEntryValue the value used to represent null. */ public TObjectCharCustomHashMap( HashingStrategy<? super K> strategy, int initialCapacity, float loadFactor, char noEntryValue ) { super( strategy, initialCapacity, loadFactor ); no_entry_value = noEntryValue; //noinspection RedundantCast if ( no_entry_value != ( char ) 0 ) { Arrays.fill( _values, no_entry_value ); } } /** * Creates a new <code>TObjectCharCustomHashMap</code> that contains the entries * in the map passed to it. * * @param map the <tt>TObjectCharMap</tt> to be copied. */ public TObjectCharCustomHashMap( HashingStrategy<? super K> strategy, TObjectCharMap<? extends K> map ) { this( strategy, map.size(), 0.5f, map.getNoEntryValue() ); if ( map instanceof TObjectCharCustomHashMap ) { TObjectCharCustomHashMap hashmap = ( TObjectCharCustomHashMap ) map; this._loadFactor = hashmap._loadFactor; this.no_entry_value = hashmap.no_entry_value; this.strategy = hashmap.strategy; //noinspection RedundantCast if ( this.no_entry_value != ( char ) 0 ) { Arrays.fill( _values, this.no_entry_value ); } setUp( (int) Math.ceil( DEFAULT_CAPACITY / _loadFactor ) ); } putAll( map ); } /** * initializes the hashtable to a prime capacity which is at least * <tt>initialCapacity + 1</tt>. * * @param initialCapacity an <code>int</code> value * @return the actual capacity chosen */ public int setUp( int initialCapacity ) { int capacity; capacity = super.setUp( initialCapacity ); _values = new char[capacity]; return capacity; } /** * rehashes the map to the new capacity. * * @param newCapacity an <code>int</code> value */ protected void rehash( int newCapacity ) { int oldCapacity = _set.length; //noinspection unchecked K oldKeys[] = ( K[] ) _set; char oldVals[] = _values; _set = new Object[newCapacity]; Arrays.fill( _set, FREE ); _values = new char[newCapacity]; Arrays.fill( _values, no_entry_value ); for ( int i = oldCapacity; i-- > 0; ) { K o = oldKeys[i]; if( o != FREE && o != REMOVED ) { int index = insertKey(o); if ( index < 0 ) { throwObjectContractViolation( _set[ (-index -1) ], o); } _values[index] = oldVals[i]; } } } // Query Operations /** {@inheritDoc} */ public char getNoEntryValue() { return no_entry_value; } /** {@inheritDoc} */ public boolean containsKey( Object key ) { return contains( key ); } /** {@inheritDoc} */ public boolean containsValue( char val ) { Object[] keys = _set; char[] vals = _values; for ( int i = vals.length; i-- > 0; ) { if ( keys[i] != FREE && keys[i] != REMOVED && val == vals[i] ) { return true; } } return false; } /** {@inheritDoc} */ public char get( Object key ) { int index = index( key ); return index < 0 ? no_entry_value : _values[index]; } // Modification Operations /** {@inheritDoc} */ public char put( K key, char value ) { int index = insertKey( key ); return doPut( value, index ); } /** {@inheritDoc} */ public char putIfAbsent( K key, char value ) { int index = insertKey(key); if ( index < 0 ) return _values[-index - 1]; return doPut( value, index ); } private char doPut( char value, int index ) { char previous = no_entry_value; boolean isNewMapping = true; if ( index < 0 ) { index = -index -1; previous = _values[index]; isNewMapping = false; } //noinspection unchecked _values[index] = value; if ( isNewMapping ) { postInsertHook( consumeFreeSlot ); } return previous; } /** {@inheritDoc} */ public char remove( Object key ) { char prev = no_entry_value; int index = index(key); if ( index >= 0 ) { prev = _values[index]; removeAt( index ); // clear key,state; adjust size } return prev; } /** * Removes the mapping at <tt>index</tt> from the map. * This method is used internally and public mainly because * of packaging reasons. Caveat Programmer. * * @param index an <code>int</code> value */ protected void removeAt( int index ) { _values[index] = no_entry_value; super.removeAt( index ); // clear key, state; adjust size } // Bulk Operations /** {@inheritDoc} */ public void putAll( Map<? extends K, ? extends Character> map ) { Set<? extends Map.Entry<? extends K,? extends Character>> set = map.entrySet(); for ( Map.Entry<? extends K,? extends Character> entry : set ) { put( entry.getKey(), entry.getValue() ); } } /** {@inheritDoc} */ public void putAll( TObjectCharMap<? extends K> map ){ map.forEachEntry( PUT_ALL_PROC ); } /** {@inheritDoc} */ public void clear() { super.clear(); Arrays.fill( _set, 0, _set.length, FREE ); Arrays.fill( _values, 0, _values.length, no_entry_value ); } // Views /** {@inheritDoc} */ public Set<K> keySet() { return new KeyView(); } /** {@inheritDoc} */ public Object[] keys() { //noinspection unchecked K[] keys = ( K[] ) new Object[size()]; Object[] k = _set; for ( int i = k.length, j = 0; i-- > 0; ) { if ( k[i] != FREE && k[i] != REMOVED ) { //noinspection unchecked keys[j++] = ( K ) k[i]; } } return keys; } /** {@inheritDoc} */ public K[] keys( K[] a ) { int size = size(); if ( a.length < size ) { //noinspection unchecked a = ( K[] ) java.lang.reflect.Array.newInstance( a.getClass().getComponentType(), size ); } Object[] k = _set; for ( int i = k.length, j = 0; i-- > 0; ) { if ( k[i] != FREE && k[i] != REMOVED ) { //noinspection unchecked a[j++] = ( K ) k[i]; } } return a; } /** {@inheritDoc} */ public TCharCollection valueCollection() { return new TCharValueCollection(); } /** {@inheritDoc} */ public char[] values() { char[] vals = new char[size()]; char[] v = _values; Object[] keys = _set; for ( int i = v.length, j = 0; i-- > 0; ) { if ( keys[i] != FREE && keys[i] != REMOVED ) { vals[j++] = v[i]; } } return vals; } /** {@inheritDoc} */ public char[] values( char[] array ) { int size = size(); if ( array.length < size ) { array = new char[size]; } char[] v = _values; Object[] keys = _set; for ( int i = v.length, j = 0; i-- > 0; ) { if ( keys[i] != FREE && keys[i] != REMOVED ) { array[j++] = v[i]; } } if ( array.length > size ) { array[size] = no_entry_value; } return array; } /** * @return an iterator over the entries in this map */ public TObjectCharIterator<K> iterator() { return new TObjectCharHashIterator<K>( this ); } /** {@inheritDoc} */ @SuppressWarnings({"RedundantCast"}) public boolean increment( K key ) { //noinspection RedundantCast return adjustValue( key, (char)1 ); } /** {@inheritDoc} */ public boolean adjustValue( K key, char amount ) { int index = index(key); if ( index < 0 ) { return false; } else { _values[index] += amount; return true; } } /** {@inheritDoc} */ public char adjustOrPutValue( final K key, final char adjust_amount, final char put_amount ) { int index = insertKey( key ); final boolean isNewMapping; final char newValue; if ( index < 0 ) { index = -index -1; newValue = ( _values[index] += adjust_amount ); isNewMapping = false; } else { newValue = ( _values[index] = put_amount ); isNewMapping = true; } //noinspection unchecked if ( isNewMapping ) { postInsertHook( consumeFreeSlot ); } return newValue; } /** * Executes <tt>procedure</tt> for each key in the map. * * @param procedure a <code>TObjectProcedure</code> value * @return false if the loop over the keys terminated because * the procedure returned false for some key. */ public boolean forEachKey( TObjectProcedure<? super K> procedure ) { return forEach( procedure ); } /** * Executes <tt>procedure</tt> for each value in the map. * * @param procedure a <code>TCharProcedure</code> value * @return false if the loop over the values terminated because * the procedure returned false for some value. */ public boolean forEachValue( TCharProcedure procedure ) { Object[] keys = _set; char[] values = _values; for ( int i = values.length; i-- > 0; ) { if ( keys[i] != FREE && keys[i] != REMOVED && ! procedure.execute( values[i] ) ) { return false; } } return true; } /** * Executes <tt>procedure</tt> for each key/value entry in the * map. * * @param procedure a <code>TOObjectCharProcedure</code> value * @return false if the loop over the entries terminated because * the procedure returned false for some entry. */ @SuppressWarnings({"unchecked"}) public boolean forEachEntry( TObjectCharProcedure<? super K> procedure ) { Object[] keys = _set; char[] values = _values; for ( int i = keys.length; i-- > 0; ) { if ( keys[i] != FREE && keys[i] != REMOVED && ! procedure.execute( ( K ) keys[i], values[i] ) ) { return false; } } return true; } /** * Retains only those entries in the map for which the procedure * returns a true value. * * @param procedure determines which entries to keep * @return true if the map was modified. */ public boolean retainEntries( TObjectCharProcedure<? super K> procedure ) { boolean modified = false; //noinspection unchecked K[] keys = ( K[] ) _set; char[] values = _values; // Temporarily disable compaction. This is a fix for bug #1738760 tempDisableAutoCompaction(); try { for ( int i = keys.length; i-- > 0; ) { if ( keys[i] != FREE && keys[i] != REMOVED && ! procedure.execute( keys[i], values[i] ) ) { removeAt(i); modified = true; } } } finally { reenableAutoCompaction( true ); } return modified; } /** * Transform the values in this map using <tt>function</tt>. * * @param function a <code>TCharFunction</code> value */ public void transformValues( TCharFunction function ) { Object[] keys = _set; char[] values = _values; for ( int i = values.length; i-- > 0; ) { if ( keys[i] != null && keys[i] != REMOVED ) { values[i] = function.execute( values[i] ); } } } // Comparison and hashing /** * Compares this map with another map for equality of their stored * entries. * * @param other an <code>Object</code> value * @return a <code>boolean</code> value */ public boolean equals( Object other ) { if ( ! ( other instanceof TObjectCharMap ) ) { return false; } TObjectCharMap that = ( TObjectCharMap ) other; if ( that.size() != this.size() ) { return false; } try { TObjectCharIterator iter = this.iterator(); while ( iter.hasNext() ) { iter.advance(); Object key = iter.key(); char value = iter.value(); if ( value == no_entry_value ) { if ( !( that.get( key ) == that.getNoEntryValue() && that.containsKey( key ) ) ) { return false; } } else { if ( value != that.get( key ) ) { return false; } } } } catch ( ClassCastException ex ) { // unused. } return true; } /** {@inheritDoc} */ public int hashCode() { int hashcode = 0; Object[] keys = _set; char[] values = _values; for ( int i = values.length; i-- > 0; ) { if ( keys[i] != FREE && keys[i] != REMOVED ) { hashcode += HashFunctions.hash( values[i] ) ^ ( keys[i] == null ? 0 : keys[i].hashCode() ); } } return hashcode; } /** a view onto the keys of the map. */ protected class KeyView extends MapBackedView<K> { @SuppressWarnings({"unchecked"}) public Iterator<K> iterator() { return new TObjectHashIterator( TObjectCharCustomHashMap.this ); } public boolean removeElement( K key ) { return no_entry_value != TObjectCharCustomHashMap.this.remove( key ); } public boolean containsElement( K key ) { return TObjectCharCustomHashMap.this.contains( key ); } } private abstract class MapBackedView<E> extends AbstractSet<E> implements Set<E>, Iterable<E> { 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() { TObjectCharCustomHashMap.this.clear(); } public boolean add( E obj ) { throw new UnsupportedOperationException(); } public int size() { return TObjectCharCustomHashMap.this.size(); } public Object[] toArray() { Object[] result = new Object[size()]; Iterator<E> e = iterator(); for ( int i = 0; e.hasNext(); i++ ) { result[i] = e.next(); } return result; } public <T> T[] toArray( T[] a ) { int size = size(); if ( a.length < size ) { //noinspection unchecked a = (T[]) java.lang.reflect.Array.newInstance( a.getClass().getComponentType(), size ); } Iterator<E> 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 TObjectCharCustomHashMap.this.isEmpty(); } public boolean addAll( Collection<? extends E> collection ) { throw new UnsupportedOperationException(); } @SuppressWarnings({"SuspiciousMethodCalls"}) public boolean retainAll( Collection<?> collection ) { boolean changed = false; Iterator<E> i = iterator(); while ( i.hasNext() ) { if ( !collection.contains( i.next() ) ) { i.remove(); changed = true; } } return changed; } } class TCharValueCollection implements TCharCollection { /** {@inheritDoc} */ public TCharIterator iterator() { return new TObjectCharValueHashIterator(); } /** {@inheritDoc} */ public char getNoEntryValue() { return no_entry_value; } /** {@inheritDoc} */ public int size() { return _size; } /** {@inheritDoc} */ public boolean isEmpty() { return 0 == _size; } /** {@inheritDoc} */ public boolean contains( char entry ) { return TObjectCharCustomHashMap.this.containsValue( entry ); } /** {@inheritDoc} */ public char[] toArray() { return TObjectCharCustomHashMap.this.values(); } /** {@inheritDoc} */ public char[] toArray( char[] dest ) { return TObjectCharCustomHashMap.this.values( dest ); } public boolean add( char entry ) { throw new UnsupportedOperationException(); } /** {@inheritDoc} */ public boolean remove( char entry ) { char[] values = _values; Object[] set = _set; for ( int i = values.length; i-- > 0; ) { if ( ( set[i] != FREE && set[i] != REMOVED ) && entry == values[i] ) { removeAt( i ); return true; } } return false; } /** {@inheritDoc} */ public boolean containsAll( Collection<?> collection ) { for ( Object element : collection ) { if ( element instanceof Character ) { char ele = ( ( Character ) element ).charValue(); if ( ! TObjectCharCustomHashMap.this.containsValue( ele ) ) { return false; } } else { return false; } } return true; } /** {@inheritDoc} */ public boolean containsAll( TCharCollection collection ) { TCharIterator iter = collection.iterator(); while ( iter.hasNext() ) { if ( ! TObjectCharCustomHashMap.this.containsValue( iter.next() ) ) { return false; } } return true; } /** {@inheritDoc} */ public boolean containsAll( char[] array ) { for ( char element : array ) { if ( ! TObjectCharCustomHashMap.this.containsValue( element ) ) { return false; } } return true; } /** {@inheritDoc} */ public boolean addAll( Collection<? extends Character> collection ) { throw new UnsupportedOperationException(); } /** {@inheritDoc} */ public boolean addAll( TCharCollection collection ) { throw new UnsupportedOperationException(); } /** {@inheritDoc} */ public boolean addAll( char[] array ) { throw new UnsupportedOperationException(); } /** {@inheritDoc} */ @SuppressWarnings({"SuspiciousMethodCalls"}) public boolean retainAll( Collection<?> collection ) { boolean modified = false; TCharIterator iter = iterator(); while ( iter.hasNext() ) { if ( ! collection.contains( Character.valueOf ( iter.next() ) ) ) { iter.remove(); modified = true; } } return modified; } /** {@inheritDoc} */ public boolean retainAll( TCharCollection collection ) { if ( this == collection ) { return false; } boolean modified = false; TCharIterator iter = iterator(); while ( iter.hasNext() ) { if ( ! collection.contains( iter.next() ) ) { iter.remove(); modified = true; } } return modified; } /** {@inheritDoc} */ public boolean retainAll( char[] array ) { boolean changed = false; Arrays.sort( array ); char[] values = _values; Object[] set = _set; for ( int i = set.length; i-- > 0; ) { if ( set[i] != FREE && set[i] != REMOVED && ( Arrays.binarySearch( array, values[i] ) < 0) ) { removeAt( i ); changed = true; } } return changed; } /** {@inheritDoc} */ public boolean removeAll( Collection<?> collection ) { boolean changed = false; for ( Object element : collection ) { if ( element instanceof Character ) { char c = ( ( Character ) element ).charValue(); if ( remove( c ) ) { changed = true; } } } return changed; } /** {@inheritDoc} */ public boolean removeAll( TCharCollection collection ) { if ( this == collection ) { clear(); return true; } boolean changed = false; TCharIterator iter = collection.iterator(); while ( iter.hasNext() ) { char element = iter.next(); if ( remove( element ) ) { changed = true; } } return changed; } /** {@inheritDoc} */ public boolean removeAll( char[] array ) { boolean changed = false; for ( int i = array.length; i-- > 0; ) { if ( remove( array[i] ) ) { changed = true; } } return changed; } /** {@inheritDoc} */ public void clear() { TObjectCharCustomHashMap.this.clear(); } /** {@inheritDoc} */ public boolean forEach( TCharProcedure procedure ) { return TObjectCharCustomHashMap.this.forEachValue( procedure ); } @Override public String toString() { final StringBuilder buf = new StringBuilder( "{" ); forEachValue( new TCharProcedure() { private boolean first = true; public boolean execute( char value ) { if ( first ) { first = false; } else { buf.append( ", " ); } buf.append( value ); return true; } } ); buf.append( "}" ); return buf.toString(); } class TObjectCharValueHashIterator implements TCharIterator { protected THash _hash = TObjectCharCustomHashMap.this; /** * the number of elements this iterator believes are in the * data structure it accesses. */ protected int _expectedSize; /** the index used for iteration. */ protected int _index; /** Creates an iterator over the specified map */ TObjectCharValueHashIterator() { _expectedSize = _hash.size(); _index = _hash.capacity(); } /** {@inheritDoc} */ public boolean hasNext() { return nextIndex() >= 0; } /** {@inheritDoc} */ public char next() { moveToNextIndex(); return _values[_index]; } /** @{inheritDoc} */ public void remove() { if ( _expectedSize != _hash.size() ) { throw new ConcurrentModificationException(); } // Disable auto compaction during the remove. This is a workaround for // bug 1642768. try { _hash.tempDisableAutoCompaction(); TObjectCharCustomHashMap.this.removeAt( _index ); } finally { _hash.reenableAutoCompaction( false ); } _expectedSize--; } /** * Sets the internal <tt>index</tt> so that the `next' object * can be returned. */ protected final void moveToNextIndex() { // doing the assignment && < 0 in one line shaves // 3 opcodes... if ( ( _index = nextIndex() ) < 0 ) { throw new NoSuchElementException(); } } /** * Returns the index of the next value in the data structure * or a negative value if the iterator is exhausted. * * @return an <code>int</code> value * @throws java.util.ConcurrentModificationException * if the underlying * collection's size has been modified since the iterator was * created. */ protected final int nextIndex() { if ( _expectedSize != _hash.size() ) { throw new ConcurrentModificationException(); } Object[] set = TObjectCharCustomHashMap.this._set; int i = _index; while ( i-- > 0 && ( set[i] == TCustomObjectHash.FREE || set[i] == TCustomObjectHash.REMOVED ) ) { ; } return i; } } } class TObjectCharHashIterator<K> extends TObjectHashIterator<K> implements TObjectCharIterator<K> { /** the collection being iterated over */ private final TObjectCharCustomHashMap<K> _map; public TObjectCharHashIterator( TObjectCharCustomHashMap<K> map ) { super( map ); this._map = map; } /** {@inheritDoc} */ public void advance() { moveToNextIndex(); } /** {@inheritDoc} */ @SuppressWarnings({"unchecked"}) public K key() { return ( K ) _map._set[_index]; } /** {@inheritDoc} */ public char value() { return _map._values[_index]; } /** {@inheritDoc} */ public char setValue( char val ) { char old = value(); _map._values[_index] = val; return old; } } // Externalization public void writeExternal( ObjectOutput out ) throws IOException { // VERSION out.writeByte( 0 ); // SUPER super.writeExternal( out ); // STRATEGY out.writeObject( strategy ); // NO_ENTRY_VALUE out.writeChar( no_entry_value ); // NUMBER OF ENTRIES out.writeInt( _size ); // ENTRIES for ( int i = _set.length; i-- > 0; ) { if ( _set[i] != REMOVED && _set[i] != FREE ) { out.writeObject( _set[i] ); out.writeChar( _values[i] ); } } } public void readExternal( ObjectInput in ) throws IOException, ClassNotFoundException { // VERSION in.readByte(); // SUPER super.readExternal( in ); // STRATEGY strategy = ( HashingStrategy<K> ) in.readObject(); // NO_ENTRY_VALUE no_entry_value = in.readChar(); // NUMBER OF ENTRIES int size = in.readInt(); setUp( size ); // ENTRIES while (size-- > 0) { //noinspection unchecked K key = ( K ) in.readObject(); char val = in.readChar(); put(key, val); } } /** {@inheritDoc} */ public String toString() { final StringBuilder buf = new StringBuilder("{"); forEachEntry( new TObjectCharProcedure<K>() { private boolean first = true; public boolean execute( K key, char value ) { if ( first ) first = false; else buf.append( "," ); buf.append( key ).append( "=" ).append( value ); return true; } }); buf.append( "}" ); return buf.toString(); } }