diff options
Diffstat (limited to 'src/main/java/io/trygvis/btree/BtreeMap.java')
-rw-r--r-- | src/main/java/io/trygvis/btree/BtreeMap.java | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/main/java/io/trygvis/btree/BtreeMap.java b/src/main/java/io/trygvis/btree/BtreeMap.java new file mode 100644 index 0000000..06c348f --- /dev/null +++ b/src/main/java/io/trygvis/btree/BtreeMap.java @@ -0,0 +1,97 @@ +package io.trygvis.btree; + +import java.io.Closeable; +import java.io.IOException; +import java.util.Collection; +import java.util.Map; +import java.util.Set; + +public class BtreeMap<K, V> implements Map<K, V>, Closeable { + + public static interface Serializer<A> { + byte[] toBytes(A a); + + A fromBytes(byte[] bytes); + } + + private final BtreeFile tree; + private final Serializer<K> kSerializer; + private final Serializer<V> vSerializer; + + public BtreeMap(BtreeFile tree, Serializer<K> kSerializer, Serializer<V> vSerializer) { + this.tree = tree; + this.kSerializer = kSerializer; + this.vSerializer = vSerializer; + } + + @Override + public void close() throws IOException { + tree.close(); + } + + @Override + public int size() { + return 0; + } + + @Override + public boolean isEmpty() { + return size() == 0; + } + + @Override + public boolean containsKey(Object key) { + throw new UnsupportedOperationException(); + } + + @Override + public boolean containsValue(Object value) { + throw new UnsupportedOperationException(); + } + + @Override + public V get(Object key) { + throw new UnsupportedOperationException(); + } + + @Override + public V put(K key, V value) { + try { + tree.add(kSerializer.toBytes(key), vSerializer.toBytes(value)); + + return null; + } catch (IOException e) { + throw new RuntimeException(e); + } + } + + @Override + public V remove(Object key) { + throw new UnsupportedOperationException(); + } + + @Override + public void putAll(Map<? extends K, ? extends V> m) { + throw new UnsupportedOperationException(); + } + + @Override + public void clear() { + throw new UnsupportedOperationException(); + } + + @Override + public Set<K> keySet() { + throw new UnsupportedOperationException(); + } + + @Override + public Collection<V> values() { + throw new UnsupportedOperationException(); + } + + @Override + public Set<Entry<K, V>> entrySet() { + throw new UnsupportedOperationException(); + } +} |