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72 lines
2.2 KiB
72 lines
2.2 KiB
13 years ago
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/**
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* URIReference
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* Copyright 2012 by Michael Peter Christen
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* First released 3.4.2012 at http://yacy.net
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*
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* This file is part of YaCy Content Integration
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program in the file lgpl21.txt
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.yacy.kelondro.data.meta;
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import java.util.Date;
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import java.util.Map;
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import java.util.regex.Pattern;
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public interface URIReference {
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/**
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* The hash of a URIReference is a unique key for the stored URL.
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* It is in fact equal to url().hash()
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* @return the hash of the stored url
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*/
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public byte[] hash();
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/**
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* The modification date of the URIReference is given if
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* the record was created first and is defined with the
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* creation date. If the record is modified later, the date shall change.
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* @return the modification date of this record
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*/
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public Date moddate();
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/**
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* The DigestURI is the payload of the URIReference
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* @return the url as DigestURI with assigned URL hash according to the record hash
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*/
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public DigestURI url();
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/**
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* check if the url matches agains a given matcher
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* @param matcher
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* @return true if the url() matches
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*/
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public boolean matches(final Pattern matcher);
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/**
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* transform the record into a map which can be stored
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* @return
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*/
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public Map<String, byte[]> toMap();
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/**
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* produce a visible representation of the record
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* @return a string for the url()
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*/
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@Override
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public String toString();
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}
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