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package org.glassfish.ejb.deployment.descriptor;
import java.lang.reflect.Method;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.enterprise.deployment.MethodDescriptor;
import com.sun.enterprise.deployment.util.DOLUtils;
import org.glassfish.deployment.common.Descriptor;
/**
* This class contains information about EJB-QL queries for
* finder/selector methods of EJB2.0 CMP EntityBeans.
* It represents the XML element.
*
* @author Sanjeev Krishnan
*/
public final class QueryDescriptor extends Descriptor {
// For EJB2.0: the query is either a string in EJB-QL or is empty.
// For EJB1.1: the query empty (only sql is available)
private String query;
// SQL query corresponding to EJB-QL or English
private String sql;
private MethodDescriptor methodDescriptor;
private transient Method method;
// Deployment information used to specify whether ejbs
// returned by a select query should be materialized as
// EJBLocalObject or EJBObject. This property is optional
// and is only applicable for ejbSelect methods that
// select ejbs.
private static final int NO_RETURN_TYPE_MAPPING = 0;
private static final int RETURN_LOCAL_TYPES = 1;
private static final int RETURN_REMOTE_TYPES = 2;
private int returnTypeMapping;
// Create logger object per Java SDK 1.4 to log messages
// introduced Santanu De, Sun Microsystems, March 2002
static Logger _logger = DOLUtils.getDefaultLogger();
public QueryDescriptor()
{
this.query = null;
this.sql = null;
this.returnTypeMapping = NO_RETURN_TYPE_MAPPING;
}
public QueryDescriptor(QueryDescriptor otherQuery, Method m) {
this.query = otherQuery.query;
this.sql = otherQuery.sql;
this.method = m;
this.returnTypeMapping = otherQuery.returnTypeMapping;
}
/**
public void setQueryMethod(MethodDescriptor md)
{
this.methodDescriptor = md;
}
public MethodDescriptor getQueryMethod()
{
return methodDescriptor;
}
**/
public void setQueryMethod(Method m)
{
this.method = m;
}
public Method getQueryMethod()
{
return method;
}
public void setQueryMethodDescriptor(MethodDescriptor m) {
methodDescriptor = m;
}
public MethodDescriptor getQueryMethodDescriptor() {
return methodDescriptor;
}
public boolean getIsEjbQl()
{
return (query != null);
}
/**
* Set the EJB-QL query (ejb-ql XML element). If query parameter
* is null, or has no content, getIsEjbQl will return false.
* Otherwise, getIsEjbQl will return true.
*/
public void setQuery(String query)
{
_logger.log(Level.FINE,"input query = '" + query + "'");
String newQuery = (query != null) ? query.trim() : null;
if( (newQuery != null) && newQuery.equals("") ) {
newQuery = null;
}
if( newQuery == null ) {
_logger.log(Level.FINE,"query has no content -- setting to NULL");
} else {
_logger.log(Level.FINE,"setting query to '" + newQuery + "'");
}
this.query = newQuery;
}
/**
* Get the EJB-QL query (ejb-ql XML element)
*/
public String getQuery()
{
return query;
}
public boolean getHasSQL() {
return (this.sql != null);
}
public void setSQL(String sql)
{
this.sql = sql;
}
public String getSQL()
{
return sql;
}
// Returns true if no return type mapping has been specified
public boolean getHasNoReturnTypeMapping() {
return (returnTypeMapping == NO_RETURN_TYPE_MAPPING);
}
// Returns true only if a local return type has been specified.
public boolean getHasLocalReturnTypeMapping() {
return (returnTypeMapping == RETURN_LOCAL_TYPES);
}
// Returns true only if a remote return type has been specified.
public boolean getHasRemoteReturnTypeMapping() {
return (returnTypeMapping == RETURN_REMOTE_TYPES);
}
public void setHasNoReturnTypeMapping() {
returnTypeMapping = NO_RETURN_TYPE_MAPPING;
}
public void setHasLocalReturnTypeMapping() {
returnTypeMapping = RETURN_LOCAL_TYPES;
}
public void setHasRemoteReturnTypeMapping() {
returnTypeMapping = RETURN_REMOTE_TYPES;
}
public int getReturnTypeMapping() {
return returnTypeMapping;
}
public void print(StringBuffer toStringBuffer) {
toStringBuffer.append("Query ");
if(getQueryMethodDescriptor() != null)
getQueryMethodDescriptor().print(toStringBuffer);
toStringBuffer.append("\n");
if (getHasSQL()) {
toStringBuffer.append("SQL : ").append(getSQL());
return;
}
if (getIsEjbQl()) {
toStringBuffer.append("EJB QL: ").append(query);
return;
}
toStringBuffer.append(" No query associated");
}
}