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package oracle.toplink.essentials.internal.ejb.cmp3.metadata.queries;

import javax.persistence.QueryHint;
import javax.persistence.NamedQuery;

import oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataLogger;

/**
 * Object to hold onto a named query metadata.
 * 
 * @author Guy Pelletier
 * @since TopLink EJB 3.0 Reference Implementation
 */
public class MetadataNamedQuery extends MetadataQuery {
    /**
     * INTERNAL:
     */
    protected MetadataNamedQuery() {}

    /**
     * INTERNAL:
     */
    public MetadataNamedQuery(NamedQuery namedQuery, Class javaClass) {
        // Set the location where we found this query.
        setLocation(javaClass.getName());
        
        // Process the name.
        setName(namedQuery.name());
        
        // Process the query string.
        setEJBQLString(namedQuery.query());
            
        // Process the query hints.
        for (QueryHint hint : namedQuery.hints()) {
            addHint(new MetadataQueryHint(hint.name(), hint.value()));
        }     
    }
    
    /**
     * INTERNAL:
     */
    public String getIgnoreLogMessageContext() {
        return MetadataLogger.IGNORE_NAMED_QUERY_ANNOTATION;
    }
}