public int storeByteArray(final int id, final byte[] data) {
int ret = id;
if (id == NewPage) {
ret = m_storageManager.storeByteArray(id, data);
Entry e = new Entry(data);
addEntry(ret, e);
} else {
if (m_bWriteThrough) {
m_storageManager.storeByteArray(id, data);
}
Entry e = (Entry) m_buffer.get(new Integer(id));
if (e != null) {
e.m_data = new byte[data.length];
System.arraycopy(data, 0, e.m_data, 0, data.length);
if (m_bWriteThrough == false) {
e.m_bDirty = true;
m_hits++;
} else {
e.m_bDirty = false;
}
} else {
e = new Entry(data);
if (m_bWriteThrough == false) e.m_bDirty = true;
addEntry(id, e);
}
}
return ret;
}
public void flush() {
Iterator it = m_buffer.entrySet().iterator();
while (it.hasNext()) {
Map.Entry me = (Map.Entry) it.next();
Entry e = (Entry) me.getValue();
int id = ((Integer) me.getKey()).intValue();
if (e.m_bDirty) m_storageManager.storeByteArray(id, e.m_data);
}
m_storageManager.flush();
}
public void deleteByteArray(final int id) {
Integer ID = new Integer(id);
Entry e = (Entry) m_buffer.get(ID);
if (e != null) {
m_buffer.remove(ID);
}
m_storageManager.deleteByteArray(id);
}
public byte[] loadByteArray(final int id) {
byte[] ret = null;
Entry e = (Entry) m_buffer.get(new Integer(id));
if (e != null) {
m_hits++;
ret = new byte[e.m_data.length];
System.arraycopy(e.m_data, 0, ret, 0, e.m_data.length);
} else {
ret = m_storageManager.loadByteArray(id);
e = new Entry(ret);
addEntry(id, e);
}
return ret;
}