public void setUp(short pageSize, IndexFactory<Long, Integer> indexType) throws IOException {
File path = File.createTempFile("test-mixed", ".tmp", new File("test"));
path.delete();
System.out.println("file: " + path);
m_pageSize = pageSize;
m_dataSize = (short) (pageSize - (MAGIC.length + Long.SIZE / 8));
m_pageFile = createFileFactory(path, pageSize);
m_indexFactory = indexType;
// create the index
Transaction tx = m_pageFile.tx();
try {
Index<Long, Integer> index = m_indexFactory.create(tx);
// seed the index with some metadata about the test
index.put(-2L, (int) m_pageSize);
index.put(-3L, (int) m_dataSize);
index.put(-4L, MAGIC.length);
} finally {
tx.commit();
}
m_pageFile.flush();
}
private CustomObject load(long id) {
Transaction tx = m_pageFile.tx();
try {
Index<Long, Integer> idx = m_indexFactory.open(tx);
Integer pageNumber = idx.get(id);
// see if the index contains this object
if (pageNumber == null) {
return null;
} else {
return load(tx, pageNumber);
}
} finally {
tx.commit();
tx.close();
}
}
private void store(CustomObject c) {
Transaction tx = m_pageFile.tx();
try {
Index<Long, Integer> idx = m_indexFactory.open(tx);
Integer pageNumber = idx.get(c.id);
// see if the index contains this object
if (pageNumber == null) {
pageNumber = tx.alloc();
store(tx, pageNumber, c);
idx.put(c.id, pageNumber);
} else {
store(tx, pageNumber, c);
}
tx.commit();
} finally {
tx.close();
}
}
