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/*******************************************************************************
 * Copyright (c) 2008 - 2017 Oracle Corporation. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Lukas Jungmann  - Java Persistence 2.2
 *     Linda DeMichiel - Java Persistence 2.1
 *     Linda DeMichiel - Java Persistence 2.0
 *
 ******************************************************************************/ 
package javax.persistence;

import java.util.List;
import java.util.Date;
import java.util.Calendar;
import java.util.stream.Stream;

/**
 * Interface used to control the execution of typed queries.
 * @param  query result type
 *
 * @see Query
 * @see Parameter
 *
 * @since Java Persistence 2.0
 */
public interface TypedQuery extends Query {
	
    /**
     * Execute a SELECT query and return the query results
     * as a typed List.
     * @return a list of the results
     * @throws IllegalStateException if called for a Java
     *         Persistence query language UPDATE or DELETE statement
     * @throws QueryTimeoutException if the query execution exceeds
     *         the query timeout value set and only the statement is
     *         rolled back
     * @throws TransactionRequiredException if a lock mode other than
     *         NONE has been set and there is no transaction
     *         or the persistence context has not been joined to the
     *         transaction
     * @throws PessimisticLockException if pessimistic locking
     *         fails and the transaction is rolled back
     * @throws LockTimeoutException if pessimistic locking
     *         fails and only the statement is rolled back
     * @throws PersistenceException if the query execution exceeds 
     *         the query timeout value set and the transaction 
     *         is rolled back 
     */
    List getResultList();

    /**
     * Execute a SELECT query and return the query results
     * as a typed java.util.stream.Stream.
     * By default this method delegates to getResultList().stream(),
     * however persistence provider may choose to override this method
     * to provide additional capabilities.
     *
     * @return a stream of the results
     * @throws IllegalStateException if called for a Java
     *         Persistence query language UPDATE or DELETE statement
     * @throws QueryTimeoutException if the query execution exceeds
     *         the query timeout value set and only the statement is
     *         rolled back
     * @throws TransactionRequiredException if a lock mode other than
     *         NONE has been set and there is no transaction
     *         or the persistence context has not been joined to the transaction
     * @throws PessimisticLockException if pessimistic locking
     *         fails and the transaction is rolled back
     * @throws LockTimeoutException if pessimistic locking
     *         fails and only the statement is rolled back
     * @throws PersistenceException if the query execution exceeds
     *         the query timeout value set and the transaction
     *         is rolled back
     * @see Stream
     * @see #getResultList()
     * @since 2.2
     */
    default Stream getResultStream() {
        return getResultList().stream();
    }

    /**
     * Execute a SELECT query that returns a single result.
     * @return the result
     * @throws NoResultException if there is no result
     * @throws NonUniqueResultException if more than one result
     * @throws IllegalStateException if called for a Java
     *         Persistence query language UPDATE or DELETE statement
     * @throws QueryTimeoutException if the query execution exceeds
     *         the query timeout value set and only the statement is
     *         rolled back
     * @throws TransactionRequiredException if a lock mode other than
     *         NONE has been set and there is no transaction
     *         or the persistence context has not been joined to the
     *         transaction
     * @throws PessimisticLockException if pessimistic locking
     *         fails and the transaction is rolled back
     * @throws LockTimeoutException if pessimistic locking
     *         fails and only the statement is rolled back
     * @throws PersistenceException if the query execution exceeds 
     *         the query timeout value set and the transaction 
     *         is rolled back 
     */
    X getSingleResult();

    /**
     * Set the maximum number of results to retrieve.
     * @param maxResult  maximum number of results to retrieve
     * @return the same query instance
     * @throws IllegalArgumentException if the argument is negative
     */
    TypedQuery setMaxResults(int maxResult);

    /**
     * Set the position of the first result to retrieve.
     * @param startPosition position of the first result, 
     *        numbered from 0
     * @return the same query instance
     * @throws IllegalArgumentException if the argument is negative
     */
    TypedQuery setFirstResult(int startPosition);

    /**
     * Set a query property or hint. The hints elements may be used 
     * to specify query properties and hints. Properties defined by
     * this specification must be observed by the provider. 
     * Vendor-specific hints that are not recognized by a provider
     * must be silently ignored. Portable applications should not
     * rely on the standard timeout hint. Depending on the database
     * in use and the locking mechanisms used by the provider,
     * this hint may or may not be observed.
     * @param hintName  name of property or hint
     * @param value  value for the property or hint
     * @return the same query instance
     * @throws IllegalArgumentException if the second argument is not
     *         valid for the implementation
     */
    TypedQuery setHint(String hintName, Object value);

    /**
     * Bind the value of a Parameter object.
     * @param param  parameter object
     * @param value  parameter value
     * @return the same query instance
     * @throws IllegalArgumentException if the parameter
     *         does not correspond to a parameter of the
     *         query
     */
      TypedQuery setParameter(Parameter param, T value);

    /**
     * Bind an instance of java.util.Calendar to a Parameter object.
     * @param param  parameter object
     * @param value  parameter value
     * @param temporalType  temporal type
     * @return the same query instance
     * @throws IllegalArgumentException if the parameter does not
     *         correspond to a parameter of the query
     */
    TypedQuery setParameter(Parameter param, 
                               Calendar value,  
                               TemporalType temporalType);

    /**
     * Bind an instance of java.util.Date to a Parameter object.
     * @param param  parameter object
     * @param value  parameter value
     * @param temporalType  temporal type
     * @return the same query instance
     * @throws IllegalArgumentException if the parameter does not
     *         correspond to a parameter of the query
     */
    TypedQuery setParameter(Parameter param, Date value,  
                               TemporalType temporalType);

    /**
     * Bind an argument value to a named parameter.
     * @param name  parameter name
     * @param value  parameter value
     * @return the same query instance
     * @throws IllegalArgumentException if the parameter name does 
     *         not correspond to a parameter of the query or if
     *         the argument is of incorrect type
     */
    TypedQuery setParameter(String name, Object value);

    /**
     * Bind an instance of java.util.Calendar to a named parameter.
     * @param name  parameter name
     * @param value  parameter value
     * @param temporalType  temporal type
     * @return the same query instance
     * @throws IllegalArgumentException if the parameter name does
     *         not correspond to a parameter of the query or if 
     *         the value argument is of incorrect type
     */
    TypedQuery setParameter(String name, Calendar value, 
                               TemporalType temporalType);

    /**
     * Bind an instance of java.util.Date to a named parameter.
     * @param name   parameter name
     * @param value  parameter value
     * @param temporalType  temporal type
     * @return the same query instance
     * @throws IllegalArgumentException if the parameter name does
     *         not correspond to a parameter of the query or if 
     *         the value argument is of incorrect type
     */
    TypedQuery setParameter(String name, Date value, 
                               TemporalType temporalType);

    /**
     * Bind an argument value to a positional parameter.
     * @param position  position
     * @param value  parameter value
     * @return the same query instance
     * @throws IllegalArgumentException if position does not
     *         correspond to a positional parameter of the
     *         query or if the argument is of incorrect type
     */
    TypedQuery setParameter(int position, Object value);

    /**
     * Bind an instance of java.util.Calendar to a positional
     * parameter.
     * @param position  position
     * @param value  parameter value
     * @param temporalType  temporal type
     * @return the same query instance
     * @throws IllegalArgumentException if position does not
     *         correspond to a positional parameter of the query
     *         or if the value argument is of incorrect type
     */
    TypedQuery setParameter(int position, Calendar value,  
                               TemporalType temporalType);

    /**
     * Bind an instance of java.util.Date to a positional parameter.
     * @param position  position
     * @param value  parameter value
     * @param temporalType  temporal type
     * @return the same query instance
     * @throws IllegalArgumentException if position does not
     *         correspond to a positional parameter of the query
     *         or if the value argument is of incorrect type
     */
    TypedQuery setParameter(int position, Date value,  
                               TemporalType temporalType);

     /**
      * Set the flush mode type to be used for the query execution.
      * The flush mode type applies to the query regardless of the
      * flush mode type in use for the entity manager.
      * @param flushMode  flush mode
      * @return the same query instance
      */
     TypedQuery setFlushMode(FlushModeType flushMode);

     /**
      * Set the lock mode type to be used for the query execution.
      * @param lockMode  lock mode
      * @return the same query instance
      * @throws IllegalStateException if the query is found not to 
      *         be a Java Persistence query language SELECT query
      *         or a CriteriaQuery query
      */
     TypedQuery setLockMode(LockModeType lockMode);

}




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