org.hibernate.engine.query.spi.sql.NativeSQLQueryScalarReturn Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
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*/
package org.hibernate.engine.query.spi.sql;
import org.hibernate.type.Type;
/**
* Describes a scalar return in a native SQL query.
*
* @author gloegl
*/
public class NativeSQLQueryScalarReturn implements NativeSQLQueryReturn {
private final Type type;
private final String columnAlias;
private final int hashCode;
public NativeSQLQueryScalarReturn(String alias, Type type) {
this.type = type;
this.columnAlias = alias;
this.hashCode = determineHashCode();
}
public String getColumnAlias() {
return columnAlias;
}
public Type getType() {
return type;
}
public boolean equals(Object o) {
if ( this == o ) {
return true;
}
if ( o == null || getClass() != o.getClass() ) {
return false;
}
NativeSQLQueryScalarReturn that = ( NativeSQLQueryScalarReturn ) o;
if ( columnAlias != null ? !columnAlias.equals( that.columnAlias ) : that.columnAlias != null ) {
return false;
}
if ( type != null ? !type.equals( that.type ) : that.type != null ) {
return false;
}
return true;
}
public int hashCode() {
return hashCode;
}
private int determineHashCode() {
int result = type != null ? type.hashCode() : 0;
result = 31 * result + ( getClass().getName().hashCode() );
result = 31 * result + ( columnAlias != null ? columnAlias.hashCode() : 0 );
return result;
}
}