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package javax.persistence;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
/**
* Interface used to control query execution.
*
* @since Java Persistence 1.0
*/
public interface Query {
/**
* Execute a SELECT query and return the query results
* as a List.
* @return a list of the results
* @throws IllegalStateException if called for a Java
* Persistence query language UPDATE or DELETE statement
*/
public List getResultList();
/**
* 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
*/
public Object getSingleResult();
/**
* Execute an update or delete statement.
* @return the number of entities updated or deleted
* @throws IllegalStateException if called for a Java
* Persistence query language SELECT statement
* @throws TransactionRequiredException if there is
* no transaction
*/
public int executeUpdate();
/**
* Set the maximum number of results to retrieve.
* @param maxResult
* @return the same query instance
* @throws IllegalArgumentException if argument is negative
*/
public Query setMaxResults(int maxResult);
/**
* Set the position of the first result to retrieve.
* @param startPosition the start position of the first result, numbered from 0
* @return the same query instance
* @throws IllegalArgumentException if argument is negative
*/
public Query setFirstResult(int startPosition);
/**
* Set an implementation-specific hint.
* If the hint name is not recognized, it is silently ignored.
* @param hintName
* @param value
* @return the same query instance
* @throws IllegalArgumentException if the second argument is not
* valid for the implementation
*/
public Query setHint(String hintName, Object value);
/**
* Bind an argument to a named parameter.
* @param name the parameter name
* @param value
* @return the same query instance
* @throws IllegalArgumentException if parameter name does not
* correspond to parameter in query string
* or argument is of incorrect type
*/
public Query setParameter(String name, Object value);
/**
* Bind an instance of java.util.Date to a named parameter.
* @param name
* @param value
* @param temporalType
* @return the same query instance
* @throws IllegalArgumentException if parameter name does not
* correspond to parameter in query string
*/
public Query setParameter(String name, Date value, TemporalType temporalType);
/**
* Bind an instance of java.util.Calendar to a named parameter.
* @param name
* @param value
* @param temporalType
* @return the same query instance
* @throws IllegalArgumentException if parameter name does not
* correspond to parameter in query string
*/
public Query setParameter(String name, Calendar value, TemporalType temporalType);
/**
* Bind an argument to a positional parameter.
* @param position
* @param value
* @return the same query instance
* @throws IllegalArgumentException if position does not
* correspond to positional parameter of query
* or argument is of incorrect type
*/
public Query setParameter(int position, Object value);
/**
* Bind an instance of java.util.Date to a positional parameter.
* @param position
* @param value
* @param temporalType
* @return the same query instance
* @throws IllegalArgumentException if position does not
* correspond to positional parameter of query
*/
public Query setParameter(int position, Date value, TemporalType temporalType);
/**
* Bind an instance of java.util.Calendar to a positional parameter.
* @param position
* @param value
* @param temporalType
* @return the same query instance
* @throws IllegalArgumentException if position does not
* correspond to positional parameter of query
*/
public Query setParameter(int position, Calendar 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
*/
public Query setFlushMode(FlushModeType flushMode);
}
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