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| * Licensed to the Apache Software Foundation (ASF) under one |
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| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
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| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
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| package org.apache.olingo.odata2.jpa.processor.api.jpql; |
| |
| import java.util.List; |
| |
| import org.apache.olingo.odata2.api.uri.KeyPredicate; |
| |
| /** |
| * The interface provide a view on JPQL select single context.The interface |
| * provides methods for accessing the clause of a JPQL SELECT statement like |
| * "SELECT". The view can be used for building JPQL statements without any |
| * WHERE,JOIN,ORDERBY clauses. The clauses are built from OData read entity |
| * request views. |
| * |
| * |
| * @see org.apache.olingo.odata2.jpa.processor.api.jpql.JPQLStatement |
| * |
| */ |
| public interface JPQLSelectSingleContextView extends JPQLContextView { |
| /** |
| * The method returns a JPQL SELECT clause. The SELECT clause is built from |
| * $select OData system Query option. |
| * |
| * @return a String representing a SELECT clause in JPQL |
| */ |
| public String getSelectExpression(); |
| |
| /** |
| * The method returns the list of key predicates that can be used for |
| * constructing the WHERE clause in JPQL statements. The OData entity key |
| * predicates are thus converted into JPA entity keys. |
| * |
| * @return a list of key predicates |
| */ |
| public List<KeyPredicate> getKeyPredicates(); |
| } |