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// **********************************************************************
//
// Copyright (c) 2003-2014 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package Freeze.MapInternal;
import java.nio.ByteBuffer;
class EntryI<K, V> implements java.util.Map.Entry<K, V>
{
public
EntryI(MapI<K, V> map, K key, com.sleepycat.db.DatabaseEntry dbKey, ByteBuffer valueBytes, ByteBuffer indexBytes)
{
_map = map;
_dbKey = dbKey;
_valueBytes = valueBytes;
_indexBytes = indexBytes;
_key = key;
_haveKey = key != null;
}
@Override
public K
getKey()
{
if(!_haveKey)
{
assert(_dbKey != null);
_key = _map.decodeKey(_dbKey);
_haveKey = true;
}
return _key;
}
@Override
public V
getValue()
{
if(!_haveValue)
{
assert(_valueBytes != null);
_value = _map.decodeValue(_valueBytes);
_haveValue = true;
//
// Not needed anymore
//
_valueBytes = null;
}
return _value;
}
public ByteBuffer
getIndexBytes()
{
return _indexBytes;
}
@Override
public V
setValue(V value)
{
V old = getValue();
if(_iterator != null)
{
_iterator.setValue(this, value);
}
else
{
_map.putImpl(_dbKey, value);
}
_value = value;
_haveValue = true;
return old;
}
@Override
public boolean
equals(Object o)
{
if(!(o instanceof EntryI))
{
return false;
}
@SuppressWarnings("unchecked")
EntryI<K, V> e = (EntryI<K, V>)o;
return eq(getKey(), e.getKey()) && eq(getValue(), e.getValue());
}
@Override
public int
hashCode()
{
return ((getKey() == null) ? 0 : getKey().hashCode()) ^
((getValue() == null) ? 0 : getValue().hashCode());
}
@Override
public String
toString()
{
return getKey() + "=" + getValue();
}
void
iterator(IteratorI<K, V> iterator)
{
_iterator = iterator;
}
com.sleepycat.db.DatabaseEntry
getDbKey()
{
return _dbKey;
}
private static boolean
eq(Object o1, Object o2)
{
return (o1 == null ? o2 == null : o1.equals(o2));
}
private MapI<K, V> _map;
private com.sleepycat.db.DatabaseEntry _dbKey;
private ByteBuffer _valueBytes;
private ByteBuffer _indexBytes;
private K _key;
private boolean _haveKey = false;
private V _value;
private boolean _haveValue = false;
private IteratorI<K, V> _iterator;
}
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