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package oracle.toplink.essentials.internal.ejb.cmp3;
import java.util.*;
import javax.persistence.Query;
import javax.persistence.TemporalType;
import javax.persistence.FlushModeType;
import javax.persistence.NoResultException;
import javax.persistence.NonUniqueResultException;
import oracle.toplink.essentials.queryframework.*;
import oracle.toplink.essentials.ejb.cmp3.*;
import oracle.toplink.essentials.internal.helper.*;
/**
* Concrete EJB 3.0 query class
*
* To do:
* Internationalize exceptions
* Change TopLink exceptions to exception types used by the spec
* Named Parameters
* Report Query
* firstResultIndex set in query framework
* temporal type parameters
* Change single result to use ReadObjectQuery
**/
public class EJBQueryImpl extends oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl implements EJBQuery {
/**
* Base constructor for EJBQueryImpl. Initializes basic variables.
* An EJBQLQueryImpl may only ever be tied to one entityManager.
*/
protected EJBQueryImpl(EntityManagerImpl entityManager) {
super(entityManager);
}
/**
* Create an EJBQueryImpl with a TopLink query.
* @param query
* @param entityManager
*/
public EJBQueryImpl(DatabaseQuery query, EntityManagerImpl entityManager) {
super(query, entityManager);
}
/**
* Build an EJBQueryImpl based on the given ejbql string
* @param ejbql
* @param entityManager
*/
public EJBQueryImpl(String ejbql, EntityManagerImpl entityManager) {
super(ejbql, entityManager);
}
/**
* Create an EJBQueryImpl with either a query name or an ejbql string
* @param queryDescription
* @param entityManager
* @param isNamedQuery determines whether to treat the query description as ejbql or a query name
*/
public EJBQueryImpl(String queryDescription, EntityManagerImpl entityManager, boolean isNamedQuery) {
super(queryDescription, entityManager, isNamedQuery);
}
/**
* Convert the given object to the class represented by the given temporal type.
* @return an object represting the given TemporalType
*/
protected Object convertTemporalType(Object value, TemporalType type) {
ConversionManager conversionManager = ((oracle.toplink.essentials.internal.sessions.AbstractSession)getEntityManager().getActiveSession()).getDatasourcePlatform().getConversionManager();
if (type == TemporalType.TIME) {
return conversionManager.convertObject(value, ClassConstants.TIME);
} else if (type == TemporalType.TIMESTAMP) {
return conversionManager.convertObject(value, ClassConstants.TIMESTAMP);
} else if (type == TemporalType.DATE) {
return conversionManager.convertObject(value, ClassConstants.SQLDATE);
}
return value;
}
/**
* Return the entityManager this query is tied to.
*/
public EntityManager getEntityManager() {
return (EntityManager)entityManager;
}
/**
* Set the position of the first result to retrieve.
* @param start position of the first result, numbered from 0
* @return the same query instance
*/
public Query setFirstResult(int startPosition) {
try {
entityManager.verifyOpen();
setFirstResultInternal(startPosition);
return this;
} catch (RuntimeException e) {
setRollbackOnly();
throw e;
}
}
/**
* Set the flush mode type to be used for the query execution.
* @param flushMode
*/
public Query setFlushMode(FlushModeType flushMode) {
try {
entityManager.verifyOpen();
if (flushMode == null) {
getDatabaseQuery().setFlushOnExecute(null);
} else {
getDatabaseQuery().setFlushOnExecute(flushMode == FlushModeType.AUTO);
}
return this;
} catch (RuntimeException e) {
setRollbackOnly();
throw e;
}
}
/**
* 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) {
try {
entityManager.verifyOpen();
setHintInternal(hintName, value);
return this;
} catch (RuntimeException e) {
setRollbackOnly();
throw e;
}
}
/**
* Set the maximum number of results to retrieve.
* @param maxResult
* @return the same query instance
*/
public Query setMaxResults(int maxResult) {
try {
entityManager.verifyOpen();
setMaxResultsInternal(maxResult);
return this;
} catch (RuntimeException e) {
setRollbackOnly();
throw e;
}
}
/**
* Bind an argument to a named parameter.
* @param name the parameter name
* @param value
* @return the same query instance
*/
public Query setParameter(String name, Object value) {
try {
entityManager.verifyOpen();
setParameterInternal(name, value);
return this;
} catch (RuntimeException e) {
setRollbackOnly();
throw e;
}
}
/**
* Bind an instance of java.util.Date to a named parameter.
* @param name
* @param value
* @param temporalType
* @return the same query instance
*/
public Query setParameter(String name, Date value, TemporalType temporalType) {
return setParameter(name, convertTemporalType(value, temporalType));
}
/**
* Bind an instance of java.util.Calendar to a named parameter.
* @param name
* @param value
* @param temporalType
* @return the same query instance
*/
public Query setParameter(String name, Calendar value, TemporalType temporalType) {
return setParameter(name, convertTemporalType(value, temporalType));
}
/**
* Bind an argument to a positional parameter.
* @param position
* @param value
* @return the same query instance
*/
public Query setParameter(int position, Object value) {
try {
entityManager.verifyOpen();
setParameterInternal(position, value);
return this;
} catch (RuntimeException e) {
setRollbackOnly();
throw e;
}
}
/**
* Bind an instance of java.util.Date to a positional parameter.
* @param position
* @param value
Query API Enterprise JavaBeans 3.0, Early Draft Entity Beans
Sun Microsystems Inc
* @param temporalType
* @return the same query instance
*/
public Query setParameter(int position, Date value, TemporalType temporalType) {
return setParameter(position, convertTemporalType(value, temporalType));
}
/**
* Bind an instance of java.util.Calendar to a positional parameter.
* @param position
* @param value
* @param temporalType
* @return the same query instance
*/
public Query setParameter(int position, Calendar value, TemporalType temporalType) {
return setParameter(position, convertTemporalType(value, temporalType));
}
protected void throwNoResultException(String message) {
throw new NoResultException(message);
}
protected void throwNonUniqueResultException(String message) {
throw new NonUniqueResultException(message);
}
}