Example usage for com.mongodb QueryBuilder start

Introduction

In this page you can find the example usage for com.mongodb QueryBuilder start.

Prototype

public static QueryBuilder start(final String key)

Source Link

Document

Creates a new query with a document key

Usage

From source file:org.alfresco.contentstore.dao.mongo.MongoContentDAO.java

License:Open Source License

@Override
public boolean nodeExists(String nodeId, long nodeVersion, boolean isPrimary) {
    QueryBuilder queryBuilder = QueryBuilder.start("e").is(serverIdentity.getId()).and("n").is(nodeId).and("v")
            .is(nodeVersion).and("pri").is(isPrimary);
    DBObject query = queryBuilder.get();

    DBObject dbObject = contentData.findOne(query);
    return dbObject != null;
}

From source file:org.alfresco.repo.domain.node.mongo.MongoNodeDAO.java

License:Open Source License

private NodeEntity getLatest(long nodeId) {
    NodeEntity nodeEntity = null;//from ww  w  .j a va2  s .c o m

    DBObject query = QueryBuilder.start("n").is(nodeId).and("c").is(true).get();
    DBObject order = BasicDBObjectBuilder.start("v", -1).get();
    DBCursor cursor = nodes.find(query).sort(order).limit(1);
    try {
        if (cursor.hasNext()) {
            DBObject dbObject = cursor.next();
            nodeEntity = toNodeEntity(dbObject);
        }
    } finally {
        cursor.close();
    }

    return nodeEntity;
}

From source file:org.alfresco.repo.domain.node.mongo.MongoNodeDAO.java

License:Open Source License

@Override
public NodeEntity getByVersionLabel(long nodeId, String versionLabel) {
    NodeEntity nodeEntity = null;//w ww . j a  v a2  s  .c o m

    DBObject query = QueryBuilder.start("n").is(nodeId).and("vl").is(versionLabel).and("c").is(true).get();
    DBObject orderBy = BasicDBObjectBuilder.start("v", -1).get();
    DBCursor cursor = nodes.find(query).sort(orderBy).limit(1);
    try {
        int size = cursor.size();
        if (size > 1) {
            throw new RuntimeException();
        } else if (size == 1) {
            DBObject dbObject = cursor.next();
            nodeEntity = toNodeEntity(dbObject);
        }
    } finally {
        cursor.close();
    }

    return nodeEntity;
}

From source file:org.alfresco.repo.domain.node.mongo.MongoNodeDAO.java

License:Open Source License

@Override
public void onCommit(String txnId) {
    DBObject query = QueryBuilder.start("t").is(txnId).get();
    DBObject update = BasicDBObjectBuilder.start("$set", BasicDBObjectBuilder.start("c", true).get()).get();
    nodes.update(query, update, false, true);
}

From source file:org.alfresco.semantics.MongoSemantics.java

License:Open Source License

public void addRelation(String fromId, String toId, String category) {
    QueryBuilder queryBuilder = QueryBuilder.start("f").is(fromId).and("t").is(toId);
    DBObject query = queryBuilder.get();

    BasicDBObjectBuilder builder = BasicDBObjectBuilder.start("f", fromId).add("t", toId).add("c", category)
            .add("w", 1.0);
    DBObject insert = builder.get();/*from  ww  w . j  a v  a  2s  . com*/

    WriteResult result = relations.update(query, insert, true, false);
    checkResult(result, 1);
}

From source file:org.alfresco.semantics.MongoSemantics.java

License:Open Source License

public void deleteRelation(String fromId, String toId) {
    QueryBuilder queryBuilder = QueryBuilder.start("f").is(fromId).and("t").is(toId);
    DBObject query = queryBuilder.get();

    WriteResult result = relations.remove(query);
    checkResult(result, 1);/*from w  ww. j  a  v  a2 s .  c  om*/
}

From source file:org.alfresco.semantics.MongoSemantics.java

License:Open Source License

public void increaseWeight(String fromId, String toId, double weight) {
    QueryBuilder queryBuilder = QueryBuilder.start("f").is(fromId).and("t").is(toId);
    DBObject query = queryBuilder.get();

    BasicDBObjectBuilder updateBuilder = BasicDBObjectBuilder.start("$inc",
            BasicDBObjectBuilder.start("w", weight).get());
    DBObject update = updateBuilder.get();

    WriteResult result = relations.update(query, update, false, false);
    checkResult(result, 1);//from  ww w .ja  v  a2  s  .  c o  m
}

From source file:org.alfresco.semantics.MongoSemantics.java

License:Open Source License

public List<Relation> relationsFrom(String fromId, Set<String> categories, int skip, int maxItems) {
    List<Relation> ret = new LinkedList<>();

    QueryBuilder queryBuilder = QueryBuilder.start("f").is(fromId);
    if (categories != null && categories.size() > 0) {
        queryBuilder.and("c").in(categories);
    }/*  ww w.  ja  va  2 s . c  om*/
    DBObject query = queryBuilder.get();

    BasicDBObjectBuilder orderByBuilder = BasicDBObjectBuilder.start("t", 1).add("w", 1);
    DBObject orderBy = orderByBuilder.get();

    DBCursor cursor = relations.find(query).sort(orderBy).skip(skip).limit(maxItems);
    try {
        for (DBObject dbObject : cursor) {
            String toId = (String) dbObject.get("t");
            double weight = (Double) dbObject.get("w");
            Relation r = new Relation(fromId, toId, weight);
            ret.add(r);
        }
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }

    return ret;
}

From source file:org.alfresco.semantics.MongoSemantics.java

License:Open Source License

public List<Relation> relationsTo(String toId, Set<String> categories, int skip, int maxItems) {
    List<Relation> ret = new LinkedList<>();

    QueryBuilder queryBuilder = QueryBuilder.start("t").is(toId);
    if (categories != null && categories.size() > 0) {
        queryBuilder.and("c").in(categories);
    }/*from  www  .  ja v  a 2 s  .com*/
    DBObject query = queryBuilder.get();

    BasicDBObjectBuilder orderByBuilder = BasicDBObjectBuilder.start("f", 1).add("w", 1);
    DBObject orderBy = orderByBuilder.get();

    DBCursor cursor = relations.find(query).sort(orderBy).skip(skip).limit(maxItems);
    try {
        for (DBObject dbObject : cursor) {
            String fromId = (String) dbObject.get("f");
            double weight = (Double) dbObject.get("w");
            Relation r = new Relation(fromId, toId, weight);
            ret.add(r);
        }
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }

    return ret;
}

From source file:org.apache.gora.mongodb.filters.DefaultFactory.java

License:Apache License

protected DBObject transformFieldFilter(final SingleFieldValueFilter<K, T> fieldFilter,
        final MongoStore<K, T> store) {
    MongoMapping mapping = store.getMapping();
    String dbFieldName = mapping.getDocumentField(fieldFilter.getFieldName());

    FilterOp filterOp = fieldFilter.getFilterOp();
    List<Object> operands = fieldFilter.getOperands();

    QueryBuilder builder = QueryBuilder.start(dbFieldName);
    builder = appendToBuilder(builder, filterOp, operands);
    if (!fieldFilter.isFilterIfMissing()) {
        // If false, the find query will pass if the column is not found.
        DBObject notExist = QueryBuilder.start(dbFieldName).exists(false).get();
        builder = QueryBuilder.start().or(notExist, builder.get());
    }/*from  w  ww  .j  av a 2s .  c om*/
    return builder.get();
}