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/**
 * Copyright (C) 2013 Salzburg Research.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package at.newmedialab.ldclient.model;

import org.openrdf.model.URI;

import java.io.Serializable;
import java.util.Date;

/**
 * The cache entry for a URI resource managed by the Linked Data Cache. Contains maintenance information about
 * the resource, i.e. when it has been retrieved last, when to retrieve it next, etc.
 * 
 * User: sschaffe
 */
public class CacheEntry implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     * The URI resource managed by this cache entry.
     */
    private URI resource;

    /**
     * The date when this resource has been retrieved the last time.
     */
    private Date lastRetrieved;


    /**
     * The date when this resource needs to be retrieved again according to expiry configuration.
     */
    private Date expiryDate;


    /**
     * The number of times this resource has already been updated.
     */
    private Long updateCount;



    public CacheEntry() {
    }

    public URI getResource() {
        return resource;
    }

    public void setResource(URI resource) {
        this.resource = resource;
    }

    public Date getLastRetrieved() {
        return lastRetrieved;
    }

    public void setLastRetrieved(Date lastRetrieved) {
        this.lastRetrieved = lastRetrieved;
    }

    public Date getExpiryDate() {
        return expiryDate;
    }

    public void setExpiryDate(Date expiryDate) {
        this.expiryDate = expiryDate;
    }

    public Long getUpdateCount() {
        return updateCount;
    }

    public void setUpdateCount(Long updateCount) {
        this.updateCount = updateCount;
    }

}