AliasField.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it).
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openspcoop2.generic_project.beans;

import org.openspcoop2.generic_project.exception.ExpressionException;

/**
 * CustomField
 * 
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class AliasField extends ComplexField {

    private IField field;
    private String alias;
    
    public AliasField(IField field,String alias) throws ExpressionException{
        super(new ConstantField("AliasSimpleField", "AliasSimpleField", String.class), 
                field.getFieldName(), field.getFieldType(), field.getClassName(), field.getClassType());
        
        if(field instanceof ComplexField){
            ComplexField cf = (ComplexField) field;
            super.father = cf.father;
        }

        this.field = field;
        this.alias = alias;
    }
    
    @Override
    public Class<?> getFieldType() {
        return this.field.getFieldType();
    }
    @Override
    public Class<?> getClassType() {
        return this.field.getClassType();
    }
    @Override
    public String getFieldName() {
        return this.field.getFieldName();
    }
    @Override
    public String getClassName() {
        return this.field.getClassName();
    }
    
    public String getAlias() {
        return this.alias;
    }
    public IField getField() {
        return this.field;
    }
    
    // Ridefinisco l'equals, altrimenti nei Converter, gli if che precendono la chiamata al metodo AbstractSQLFieldConverter.toColumn
    // vengono soddisfatti, e quindi non viene usato l'alias
    @Override
    public boolean equals(Object o){
        boolean superEquals = super.equals(o);
        if(superEquals){
            if(o instanceof AliasField){
                AliasField af = (AliasField) o;
                return af.getAlias().equals(this.alias);
            }
            else{
                return false;
            }
        }
        else{
            return false;
        }
    }
    
    @Override 
    public int hashCode() {
        return super.hashCode();
    }
    
    @Override
    public String toString(){
        return toString(0);
    }
    @Override
    public String toString(int indent){
        
        StringBuilder indentBuffer = new StringBuilder();
        for (int i = 0; i < indent; i++) {
            indentBuffer.append("   ");
        }
        
        StringBuilder bf = new StringBuilder(this.field.toString(indent));
        
        bf.append(indentBuffer.toString());
        bf.append("- alias: "+this.alias);
        bf.append("\n");
                
        return bf.toString();
    }
}