Examples of org.datanucleus.store.query.Query

org.datanucleus.store.query.Query
Abstract implementation for all queries in DataNucleus. Implementations of JDOQL, SQL, JPQL, etc should extend this. Parameters can be implicit (defined in the query via syntaxes such as ":name", "?1") or explicit (defined via declareParameters). They can also be named or numbered. When passing a map of parameters with values, they are keyed by String (named parameters) or Integer (numbered parameters).

                            {
                                // End of subquery, so register it
                                String subqueryString = contentStr.substring(currentPosition, index);
                                String subqueryVarName = "DATANUCLEUS_SUBQUERY_" + subqueryNum;


                                Query subquery = (Query)ClassUtils.newInstance(query.getClass(),
                                    new Class[]{ObjectManager.class, String.class},
                                    new Object[] {query.getObjectManager(), subqueryString});
                                // TODO Set the type of the variable
                                query.addSubquery(subquery, "double " + subqueryVarName, null, null);

View Full Code Here

                            {
                                // End of subquery, so register it
                                String subqueryString = contentStr.substring(currentPosition, index);
                                String subqueryVarName = "DATANUCLEUS_SUBQUERY_" + subqueryNum;


                                Query subquery = (Query)ClassUtils.newInstance(query.getClass(),
                                    new Class[]{ObjectManager.class, String.class},
                                    new Object[] {query.getObjectManager(), subqueryString});
                                // TODO Set the type of the variable
                                query.addSubquery(subquery, "double " + subqueryVarName, null, null);

View Full Code Here

                            {
                                // End of subquery, so register it
                                String subqueryString = contentStr.substring(currentPosition, i);
                                String subqueryVarName = "DATANUCLEUS_SUBQUERY_" + subqueryNum;


                                Query subquery = (Query)ClassUtils.newInstance(query.getClass(),
                                    new Class[]{ObjectManager.class, String.class}, 
                                    new Object[] {query.getObjectManager(), subqueryString});
                                // TODO Set the type of the variable
                                query.addSubquery(subquery, "double " + subqueryVarName, null, null);

View Full Code Here

            {
                ObjectManager om = query.getObjectManager();
                if (query.getCompilation().getQueryLanguage().equalsIgnoreCase("JDOQL"))
                {
                    // JDOQL : "count(this)" query
                    Query countQuery = om.getOMFContext().getQueryManager().newQuery("JDOQL", om, query);
                    countQuery.setResult("count(this)");
                    countQuery.setOrdering(null);
                    Map queryParams = query.getInputParameters();
                    long count;
                    if (queryParams != null)
                    {
                        count = ((Long)countQuery.executeWithMap(queryParams)).longValue();
                    }
                    else
                    {
                        count = ((Long)countQuery.execute()).longValue();
                    }
                    countQuery.closeAll();
                    return (int)count;
                }
                else if (query.getCompilation().getQueryLanguage().equalsIgnoreCase("JPQL"))
                {
                    // JPQL : "count()" query
                    Query countQuery = om.getOMFContext().getQueryManager().newQuery("JPQL", om, query);
                    countQuery.setResult("count(" + query.getCompilation().getCandidateAlias() + ")");
                    countQuery.setOrdering(null);
                    Map queryParams = query.getInputParameters();
                    long count;
                    if (queryParams != null)
                    {
                        count = ((Long)countQuery.executeWithMap(queryParams)).longValue();
                    }
                    else
                    {
                        count = ((Long)countQuery.execute()).longValue();
                    }
                    countQuery.closeAll();
                    return (int)count;
                }
            }


            throw new NucleusUserException("datanucleus.query.resultSizeMethod of \"COUNT\" is only valid" +

View Full Code Here

0 1

TOP

Related Classes of org.datanucleus.store.query.Query

org.datanucleus.api.jdo.query.JDOTypesafeQuery

org.datanucleus.api.rest.RestServlet

org.datanucleus.management.runtime.QueryRuntime

org.datanucleus.query.compiler.QueryCompilation

org.datanucleus.query.evaluator.JavaQueryEvaluator

org.datanucleus.query.expression.ParameterExpression

org.datanucleus.query.JDOQLSingleStringParser$Compiler

org.datanucleus.query.JPQLSingleStringParser$Compiler

org.datanucleus.query.SQLSingleStringParser$Compiler

org.datanucleus.query.symbol.Symbol

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.