Examples of org.modeshape.jcr.spi.federation.PageKey

Package org.modeshape.jcr.spi.federation

Examples of org.modeshape.jcr.spi.federation.PageKey

org.modeshape.jcr.spi.federation.PageKey
The key used to uniquely identify a page of children. A page key is formed by joining together the id of the owning document, the offset of the page and the size of the block. @author Horia Chiorean (hchiorea@redhat.com)

    @Override
    public Document getChildrenBlock( String key ) {
        Connector connector = connectors.getConnectorForSourceKey(sourceKey(key));
        if (connector != null && connector instanceof Pageable) {
            key = documentIdFromNodeKey(key);
            PageKey blockKey = new PageKey(key);
            Document childrenBlock = ((Pageable)connector).getChildren(blockKey);
            if (childrenBlock != null) {
                return replaceConnectorIdsWithNodeKeys(childrenBlock, connector.getSourceName());
            }
        }

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        Connector connector = connectors.getConnectorForSourceKey(sourceKey(key));
        if (connector != null) {
            Document document = null;
            if (connector instanceof Pageable && PageKey.isValidFormat(key)) {
                // a page was requested
                PageKey pageKey = new PageKey(key);
                String parentId = pageKey.getParentId();
                pageKey = pageKey.withParentId(documentIdFromNodeKey(parentId));
                document = ((Pageable)connector).getChildren(pageKey);
            } else {
                // interpret the key as a regular node id
                String docId = documentIdFromNodeKey(key);
                document = connector.getDocumentById(docId);

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            return localStore().getChildrenBlock(key);
        }
        Connector connector = connectors.getConnectorForSourceKey(sourceKey(key));
        if (connector != null && connector instanceof Pageable) {
            key = documentIdFromNodeKey(key);
            PageKey blockKey = new PageKey(key);
            Document childrenBlock = ((Pageable)connector).getChildren(blockKey);
            if (childrenBlock != null) {
                return replaceConnectorIdsWithNodeKeys(childrenBlock, connector.getSourceName());
            }
        }

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                                   long blockSize,
                                   long totalChildCount ) {
        EditableDocument childrenInfo = document().getOrCreateDocument(DocumentTranslator.CHILDREN_INFO);
        childrenInfo.setNumber(DocumentTranslator.COUNT, totalChildCount);
        childrenInfo.setNumber(DocumentTranslator.BLOCK_SIZE, blockSize);
        PageKey pageKey = new PageKey(parentId, nextPageOffset, blockSize);
        childrenInfo.setString(DocumentTranslator.NEXT_BLOCK, pageKey.toString());
        return this;
    }

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Related Classes of org.modeshape.jcr.spi.federation.PageKey

org.modeshape.jcr.federation.ExternalDocumentStore

org.modeshape.jcr.federation.FederatedDocumentStore

org.modeshape.jcr.federation.FederatedDocumentWriter

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