Package org.h2.store

Examples of org.h2.store.PageStore

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                    r = rowRef.get();
                    if (r != null) {
                        return r;
                    }
                }
                PageStore store = index.getPageStore();
                Data buff = store.createData();
                int pageSize = store.getPageSize();
                int offset = offsets[at];
                buff.write(data.getBytes(), offset, pageSize - offset);
                int next = firstOverflowPageId;
                do {
                    PageDataOverflow page = index.getPageOverflow(next);
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            (firstOverflowPageId == 0 ? "" : " overflow:" + firstOverflowPageId) +
            " keys:" + Arrays.toString(keys) + " offsets:" + Arrays.toString(offsets);
    }

    public void moveTo(Session session, int newPos) {
        PageStore store = index.getPageStore();
        // load the pages into the cache, to ensure old pages
        // are written
        if (parentPageId != ROOT) {
            store.getPage(parentPageId);
        }
        store.logUndo(this, data);
        PageDataLeaf p2 = PageDataLeaf.create(index, newPos, parentPageId);
        readAllRows();
        p2.keys = keys;
        p2.overflowRowSize = overflowRowSize;
        p2.firstOverflowPageId = firstOverflowPageId;
        p2.rowRef = rowRef;
        p2.rows = rows;
        if (firstOverflowPageId != 0) {
            p2.rows[0] = getRowAt(0);
        }
        p2.entryCount = entryCount;
        p2.offsets = offsets;
        p2.start = start;
        p2.remapChildren(getPos());
        p2.writeData();
        p2.data.truncate(index.getPageStore().getPageSize());
        store.update(p2);
        if (parentPageId == ROOT) {
            index.setRootPageId(session, newPos);
        } else {
            PageDataNode p = (PageDataNode) store.getPage(parentPageId);
            p.moveChild(getPos(), newPos);
        }
        store.free(getPos());
    }
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            Collections.sort(settingNames);
            for (String k : settingNames) {
                add(rows, k, s.get(k));
            }
            if (database.isPersistent()) {
                PageStore store = database.getPageStore();
                add(rows, "info.FILE_WRITE_TOTAL", "" + store.getWriteCountTotal());
                add(rows, "info.FILE_WRITE", "" + store.getWriteCount());
                add(rows, "info.FILE_READ", "" + store.getReadCount());
                add(rows, "info.PAGE_COUNT", "" + store.getPageCount());
                add(rows, "info.PAGE_SIZE", "" + store.getPageSize());
                add(rows, "info.CACHE_MAX_SIZE", "" + store.getCache().getMaxMemory());
                add(rows, "info.CACHE_SIZE", "" + store.getCache().getMemory());
            }
            break;
        }
        case TYPE_INFO: {
            for (DataType t : DataType.getTypes()) {
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        this.initBaseIndex(table, id, name, cols, indexType);
        this.mainIndex = mainIndex;
        if (!database.isPersistent() || id < 0) {
            throw DbException.throwInternalError("" + name);
        }
        PageStore store = database.getPageStore();
        store.addIndex(this);
        if (create) {
            store.addMeta(this, session);
        }
    }
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    public String toString() {
        return "page[" + getPos() + "] b-tree node table:" + index.getId() + " entries:" + entryCount;
    }

    public void moveTo(Session session, int newPos) {
        PageStore store = index.getPageStore();
        store.logUndo(this, data);
        PageBtreeNode p2 = PageBtreeNode.create(index, newPos, parentPageId);
        readAllRows();
        p2.rowCountStored = rowCountStored;
        p2.rowCount = rowCount;
        p2.childPageIds = childPageIds;
        p2.rows = rows;
        p2.entryCount = entryCount;
        p2.offsets = offsets;
        p2.onlyPosition = onlyPosition;
        p2.parentPageId = parentPageId;
        p2.start = start;
        store.update(p2);
        if (parentPageId == ROOT) {
            index.setRootPageId(session, newPos);
        } else {
            Page p = store.getPage(parentPageId);
            if (!(p instanceof PageBtreeNode)) {
                throw DbException.throwInternalError();
            }
            PageBtreeNode n = (PageBtreeNode) p;
            n.moveChild(getPos(), newPos);
        }
        for (int i = 0; i < entryCount + 1; i++) {
            int child = childPageIds[i];
            PageBtree p = index.getPage(child);
            p.setParentPageId(newPos);
            store.update(p);
        }
        store.free(getPos());
    }
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    public String toString() {
        return "page[" + getPos() + "] b-tree leaf table:" + index.getId() + " entries:" + entryCount;
    }

    public void moveTo(Session session, int newPos) {
        PageStore store = index.getPageStore();
        readAllRows();
        PageBtreeLeaf p2 = PageBtreeLeaf.create(index, newPos, parentPageId);
        store.logUndo(this, data);
        store.logUndo(p2, null);
        p2.rows = rows;
        p2.entryCount = entryCount;
        p2.offsets = offsets;
        p2.onlyPosition = onlyPosition;
        p2.parentPageId = parentPageId;
        p2.start = start;
        store.update(p2);
        if (parentPageId == ROOT) {
            index.setRootPageId(session, newPos);
        } else {
            PageBtreeNode p = (PageBtreeNode) store.getPage(parentPageId);
            p.moveChild(getPos(), newPos);
        }
        store.free(getPos());
    }
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            Collections.sort(settingNames);
            for (String s : settingNames) {
                add(rows, s, p.getProperty(s));
            }
            if (database.isPersistent()) {
                PageStore store = database.getPageStore();
                add(rows, "info.FILE_WRITE_TOTAL", "" + store.getWriteCountTotal());
                add(rows, "info.FILE_WRITE", "" + store.getWriteCount());
                add(rows, "info.FILE_READ", "" + store.getReadCount());
                add(rows, "info.CACHE_MAX_SIZE", "" + store.getCache().getMaxMemory());
                add(rows, "info.CACHE_SIZE", "" + store.getCache().getMemory());
            }
            break;
        }
        case TYPE_INFO: {
            for (DataType t : DataType.getTypes()) {
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        return getTrace(Trace.DATABASE);
    }

    public PageStore getPageStore() {
        if (pageStore == null) {
            pageStore = new PageStore(this, databaseName + Constants.SUFFIX_PAGE_FILE, accessModeData, cacheSize);
            if (pageSize != SysProperties.PAGE_SIZE) {
                pageStore.setPageSize(pageSize);
            }
            if (!readOnly && fileLockMethod == FileLock.LOCK_FS) {
                pageStore.setLockFile(true);
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        this.initBaseIndex(table, id, name, cols, indexType);
        this.mainIndex = mainIndex;
        if (!database.isPersistent() || id < 0) {
            throw DbException.throwInternalError("" + name);
        }
        PageStore store = database.getPageStore();
        store.addIndex(this);
        if (create) {
            store.addMeta(this, session);
        }
    }
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    public String toString() {
        return "page[" + getPos() + "] b-tree node table:" + index.getId() + " entries:" + entryCount;
    }

    public void moveTo(Session session, int newPos) {
        PageStore store = index.getPageStore();
        store.logUndo(this, data);
        PageBtreeNode p2 = PageBtreeNode.create(index, newPos, parentPageId);
        readAllRows();
        p2.rowCountStored = rowCountStored;
        p2.rowCount = rowCount;
        p2.childPageIds = childPageIds;
        p2.rows = rows;
        p2.entryCount = entryCount;
        p2.offsets = offsets;
        p2.onlyPosition = onlyPosition;
        p2.parentPageId = parentPageId;
        p2.start = start;
        store.update(p2);
        if (parentPageId == ROOT) {
            index.setRootPageId(session, newPos);
        } else {
            Page p = store.getPage(parentPageId);
            if (!(p instanceof PageBtreeNode)) {
                throw DbException.throwInternalError();
            }
            PageBtreeNode n = (PageBtreeNode) p;
            n.moveChild(getPos(), newPos);
        }
        for (int i = 0; i < entryCount + 1; i++) {
            int child = childPageIds[i];
            PageBtree p = index.getPage(child);
            p.setParentPageId(newPos);
            store.update(p);
        }
        store.free(getPos());
    }
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