Examples of org.chaidb.db.log.logrecord.BTreeSpecLogRecord

org.chaidb.db.log.logrecord.BTreeSpecLogRecord
BTREE-spec: used to log the modification of BTreeSpec.
pgno: the page modified. lsn: the page's original lsn. orig: the original data. new: the replacement data. duplicate: the prefix of the replacement that matches the original.

            if (oldPage == null) {
                oldPage = new PageNumber(BTreeSpec.INVALID_PAGENO);
            }


            if (oldPage.getPageNumber() != newPage.getPageNumber()) {
                BTreeSpecLogRecord logRec = new BTreeSpecLogRecord(treeid, oldPage.getPageNumber(), newPage.getPageNumber(), BTreeSpecLogRecord.LATEST_DATA_PAGE_NUMBER_FLAG, uid, docid, ob.btree.getType());
                logRec.log();
            }


            if (Debug.DEBUG_RESOURCE_CONTROL_BLOCK) {
                logger.fatal(Integer.toHexString(uid) + " New LDP" + newPage.toHexString());
            }

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            if (oldPage == null) {
                oldPage = new PageNumber(BTreeSpec.INVALID_PAGENO);
            }


            if (!oldPage.equ(pNumber)) {
                BTreeSpecLogRecord logRec = new BTreeSpecLogRecord(pNumber.getTreeId(), oldPage.getPageNumber(), pNumber.getPageNumber(), BTreeSpecLogRecord.LATEST_DATA_PAGE_NUMBER_FLAG, uid, docid, ob.btree.getType());
                logRec.log();
            }
        }

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        }
    }


    public void updateRootOnMetaPage(PageNumber root, KernelContext kContext) throws ChaiDBException {
        if (kContext != null && kContext.getNeedLog()) {
            BTreeSpecLogRecord logRec = new BTreeSpecLogRecord(id, getBTreeSpec().getRootPageNumber().getPageNumber(), root.getPageNumber(), BTreeSpecLogRecord.ROOT_PAGE_NUMBER_FLAG, kContext.getLocker(), getType());
            logRec.log();
        }
        getBTreeSpec().setRootPageNumber(root);
    }

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        }


        p = new PageNumber(oldPageNumber);
        p.add(1);
        if (kc != null && kc.getNeedLog()) {
            BTreeSpecLogRecord logRec = new BTreeSpecLogRecord(btree.getBtreeId(), pageNumber.getPageNumber(), p.getPageNumber(), BTreeSpecLogRecord.PAGE_NUMBER_FLAG, kc.getLocker(), btree.getType());
            logRec.log();
        }
        pageNumber.setPageNumber(p);
        return oldPageNumber;
    }

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          but if btree is already created, and reopen (e.g. create index, shut down sever, and restart server)
          I'd prefer to control it at upper level, createIndex
        */


        if (kc != null && kc.getNeedLog()) {
            BTreeSpecLogRecord logRec = new BTreeSpecLogRecord(btree.getBtreeId(), internalNodeSize, nodeSize, BTreeSpecLogRecord.NODE_SIZE_FLAG, kc.getLocker(), btree.getType());
            logRec.log();
        }
    }

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     * @throws ChaiDBException
     */
    public void setLayer(byte layers, KernelContext kc) throws ChaiDBException {
        if (layers > 0 && layers != this.layers) {
            if (kc != null && kc.getNeedLog()) {
                BTreeSpecLogRecord logRec = new BTreeSpecLogRecord(btree.getBtreeId(), this.layers, layers, BTreeSpecLogRecord.LAYER_FLAG, kc.getLocker(), btree.getType());
                logRec.log();
            }
            this.layers = layers;
        }
    }

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            else subRoot = null;


        }


        if (needLog) {
            BTreeSpecLogRecord logRec = new BTreeSpecLogRecord(id, subRoot == null ? -1 : subRoot.getPageNumber(), docRoot.getPageNumber(), BTreeSpecLogRecord.DOC_ROOT_PAGE_NUMBER_FLAG, txnId, docID, IDBIndex.ID2NODE_BTREE);
            logRec.log();
        }


        docRoot.setTreeId(id);
        if (subRoot == null) id2root.put(idocID, docRoot);
        else subRoot.setPageNumber(docRoot);

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Related Classes of org.chaidb.db.log.logrecord.BTreeSpecLogRecord

org.chaidb.db.index.btree.AbstractBTree

org.chaidb.db.index.btree.BTreeSpec

org.chaidb.db.index.btree.bufmgr.PageBufferManager

org.chaidb.db.index.btree.bufmgr.PageBufferManager$ResourceControlBlock

org.chaidb.db.index.btree.Id2nodeBTree

org.chaidb.db.log.LogManager

org.chaidb.db.log.Lsn

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