Comparing Stream-Based, Page.listChildren, and Query Builder Methods for Listing AEM Children Pages | AEM Community Blog Seeding

Comparing Stream-Based, Page.listChildren, and Query Builder Methods for Listing AEM Children Pages by Kiran Sg

Abstract

Problem Statement:
What is the best way to list all the children in AEM?

Stream-based VS page.listChildren VS Query Builder

Introduction:
AEM Sling Query is a resource traversal tool recommended for content traversal in AEM. Traversal using listChildren(), getChildren(), or the Resource API is preferable to writing JCR Queries as querying can be more costly than traversal. Sling Query is not a replacement for JCR Queries. When traversal involves checking multiple levels down, Sling Query is recommended because it involves lazy evaluation of query results.

JCR queries in AEM development and recommends using them sparingly in production environments due to performance concerns. JCR queries are suitable for end-user searches and structured content retrieval but should not be used for rendering requests such as navigation or content counts.

How can I get all the child pages in AEM using JCR Query?

List queryList = new ArrayList<>();
Map<String, String> map = new HashMap<>();
map.put("path", resource.getPath());
map.put("type", "cq:PageContent");
map.put("p.limit", "-1");

Session session = resolver.adaptTo(Session.class);
Query query = queryBuilder.createQuery(PredicateGroup.create(map), session);
SearchResult result = query.getResult();
ResourceResolver leakingResourceResolverReference = null;
try {
for (final Hit hit : result.getHits()) {
if (leakingResourceResolverReference == null) {
leakingResourceResolverReference = hit.getResource().getResourceResolver();
}
queryList.add(hit.getPath());
}
} catch (RepositoryException e) {
log.error("Error collecting inherited section search results", e);
} finally {
if (leakingResourceResolverReference != null) {
leakingResourceResolverReference.close();
}
}

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Comparing Stream-Based, Page.listChildren, and Query Builder Methods for Listing AEM Children Pages

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