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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
00069 if (node.parentPtr == Node.NO_NODE) {
00070 header.rootPtr = node.filePtr;
00071
00072 collectionFile.rewriteNode(header, header.pos);
00073 }
00074 return node.filePtr;
00075 }
00076
00077 public long writeHeader(FODBIndexHeader header) throws IOException, ClassNotFoundException {
00078 return collectionFile.writeNode(header);
00079 }
00080
00081 public void rewriteHeader(FODBIndexHeader obj, long pos) throws IOException, ClassNotFoundException {
00082 collectionFile.rewriteNode(obj, pos);
00083 }
00084
00085 public void rewriteNode(Node obj, long pos) throws IOException, ClassNotFoundException {
00086 collectionFile.rewriteNode(obj, pos);
00087 }
00088
00089 public void deleteNode(Node node) throws IOException, ClassNotFoundException {
00090 collectionFile.deleteObject(node.filePtr);
00091 }
00092
00093 public void addIndexPointerToTable(long pointer) throws IOException, ClassNotFoundException {
00094 collectionFile.addIndex(pointer);
00095 }
00096
00097 public long[] readLongPtr(long pos) throws IOException, ClassNotFoundException {
00098 return (long[])collectionFile.readNode(pos);
00099 }
00100
00101 public long writeLongPtr(long[] ptr) throws IOException, ClassNotFoundException {
00102 return collectionFile.writeNode(ptr);
00103 }
00104
00105 public void rewriteLongPtr(long[] obj, long pos) throws IOException, ClassNotFoundException {
00106 collectionFile.rewriteNode(obj, pos);
00107 }
00108
00109 public void deleteLongPtr(long ptr) throws IOException, ClassNotFoundException {
00110 collectionFile.deleteObject(ptr);
00111 }
00112 }