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Class grendel.storage.intertwingle.HackDB
java.lang.Object | +----grendel.storage.intertwingle.BaseDB | +----grendel.storage.intertwingle.HackDB
This is a completely wretched thing that implements a RDF-ish database. It works by generating zillions of tiny files. We should never ever really use this; it's just for playing. If we actually ever do ship this, I will be forced to spend the rest of my life hunting down every copy on every machine in the world and eradicating it.
final class HackDB
extends grendel.storage.intertwingle.BaseDB
{
// Fields 4
private Hashtable reverseslotdirs;
private Hashtable slotdirs;
private File tmpfile;
private File top;
// Constructors 1
HackDB(File) throws IOException;
// Methods 8
public synchronized void assert(String, String, String) throws IOException;
private void ensureDirectory(File) throws IOException;
public Enumeration findAll(String, String, boolean) throws IOException;
public synchronized String findFirst(String, String, boolean) throws IOException;
private File findSlotFile(String, boolean) throws IOException;
private void nukeone(File, String, String) throws IOException;
private void putone(File, String, String) throws IOException;
public synchronized void unassert(String, String, String) throws IOException;
}
Fields
• top
private File top
• tmpfile
private File tmpfile
• slotdirs
private Hashtable slotdirs
• reverseslotdirs
private Hashtable reverseslotdirs
Constructors
• HackDB
HackDB(File f) throws IOException
Methods
• ensureDirectory
private void ensureDirectory(File f) throws IOException
• findSlotFile
private File findSlotFile(String name, boolean reverse) throws IOException
• putone
private void putone(File dir, String name, String value) throws IOException
• nukeone
private void nukeone(File dir, String name, String value) throws IOException
• assert
public synchronized void assert(String name, String slot, String value) throws IOException
• unassert
public synchronized void unassert(String name, String slot, String value) throws IOException
• findFirst
public synchronized String findFirst(String name, String slot, boolean reverse) throws IOException
• findAll
public Enumeration findAll(String name, String slot, boolean reverse) throws IOException
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