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00029 package org.openmobileis.database.fastobjectdb.db.store;
00030
00031 import java.io.IOException;
00032
00033 import org.openmobileis.database.fastobjectdb.db.index.FODBIndexHeader;
00034 import org.openmobileis.database.fastobjectdb.db.index.node.Node;
00035
00036
00047 public class FODBCollectionIndexFile {
00048 FODBCollectionFile collectionFile;
00049
00050 public FODBCollectionIndexFile(FODBCollectionFile cf) {
00051 collectionFile = cf;
00052 }
00053
00054 public Node readNode(long pos) throws IOException, ClassNotFoundException {
00055 return (Node)collectionFile.readNode(pos);
00056 }
00057
00058 public long writeNode(Node node, FODBIndexHeader header) throws IOException, ClassNotFoundException {
00059
00060 if (node.filePtr == Node.NO_NODE) {
00061
00062 node.filePtr = collectionFile.writeNode(node);
00063 } else {
00064 collectionFile.rewriteNode(node, node.filePtr);
00065 }
00066
00067
00068 if (node.parentPtr == Node.NO_NODE) {
00069 header.rootPtr = node.filePtr;
00070
00071 collectionFile.rewriteNode(header, header.pos);
00072 }
00073 return node.filePtr;
00074 }
00075
00076 public long writeHeader(FODBIndexHeader header) throws IOException, ClassNotFoundException {
00077 return collectionFile.writeNode(header);
00078 }
00079
00080 public void rewriteHeader(FODBIndexHeader obj, long pos) throws IOException, ClassNotFoundException {
00081 collectionFile.rewriteNode(obj, pos);
00082 }
00083
00084 public void rewriteNode(Node obj, long pos) throws IOException, ClassNotFoundException {
00085 collectionFile.rewriteNode(obj, pos);
00086 }
00087
00088 public void deleteNode(Node node) throws IOException, ClassNotFoundException {
00089 collectionFile.deleteObject(node.filePtr);
00090 }
00091
00092 public void addIndexPointerToTable(long pointer) throws IOException, ClassNotFoundException {
00093 collectionFile.addIndex(pointer);
00094 }
00095
00096 public long[] readLongPtr(long pos) throws IOException, ClassNotFoundException {
00097 return (long[])collectionFile.readNode(pos);
00098 }
00099
00100 public long writeLongPtr(long[] ptr) throws IOException, ClassNotFoundException {
00101 return collectionFile.writeNode(ptr);
00102 }
00103
00104 public void rewriteLongPtr(long[] obj, long pos) throws IOException, ClassNotFoundException {
00105 collectionFile.rewriteNode(obj, pos);
00106 }
00107
00108 public void deleteLongPtr(long ptr) throws IOException, ClassNotFoundException {
00109 collectionFile.deleteObject(ptr);
00110 }
00111 }