EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.filter;

import java.io.Serializable;

import java.util.UUID;

import eu.etaxonomy.cdm.model.common.CdmBase;

import eu.etaxonomy.cdm.model.common.ITreeNode;

/**

 * Preliminary class which represents a filter for an export on a CdmBase object, combined

 * with a logical operation.

 * Added to an existing filter it may e.g. allow operations like "filter1 or filter(TaxonNode:123)"

 * It includes the logical operators as enums.

 *

 * @author a.mueller

 *

 */

public class LogicFilter<T extends CdmBase> implements Serializable{

    public enum Op{

        OR, AND, NOT;

//      OR(" OR "), AND(" AND "), NOT(" NOT ");

//          String str;

//

//      private Op(String opStr){

//          str = opStr;

//      }

    }

    private static final Op defaultOperator = Op.OR;

    private Op operator = defaultOperator;

    private UUID uuid;

    private String treeIndex;

    private Class<? extends T> clazz;

//  private boolean hasUncheckedUuid = false;

    public LogicFilter(T cdmBase){

        this(cdmBase, defaultOperator);

    }

    public LogicFilter(Class<? extends T> clazz, UUID uuid, Op operator) {

//        hasUncheckedUuid = true;

        if (uuid == null){

            throw new IllegalArgumentException("Null uuid not allowed as filter criteria");

        }

        if (operator == null){

            operator = defaultOperator;

        }

        this.uuid = uuid;

        this.operator = operator;

        this.clazz = clazz;

    }

    public <S extends T> LogicFilter(S cdmBase, Op operator){

        if (cdmBase == null){

            throw new IllegalArgumentException("Null object not allowed as filter criteria");

        }

        if (operator == null){

            operator = defaultOperator;

        }

        cdmBase = CdmBase.deproxy(cdmBase);

        this.uuid = cdmBase.getUuid();

        this.operator = operator;

        this.clazz = (Class)cdmBase.getClass();

        if (cdmBase instanceof ITreeNode){

            this.treeIndex = ((ITreeNode<?>)cdmBase).treeIndex();

        }

    }

    public Op getOperator() {

        return operator;

    }

    public UUID getUuid() {

        return uuid;

    }

    public String getTreeIndex() {

        return treeIndex;

    }

    public Class<? extends T> getClazz() {

        return clazz;

    }

    /**

     * TODO try to remove public setter

     * @deprecated for internal use only

     */

    @Deprecated

    public void setTreeIndex(String treeIndex) {

        this.treeIndex = treeIndex;

    }

}