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/**
* CatchallLiteral
* Copyright 2014 by Michael Peter Christen
* First released 24.10.2014 at http://yacy.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
package net.yacy.cora.federate.solr.logic;
import org.apache.solr.common.SolrDocument;
import net.yacy.cora.federate.solr.SchemaDeclaration;
import net.yacy.cora.federate.solr.connector.AbstractSolrConnector;
public class CatchallLiteral extends Literal implements Term {
private SchemaDeclaration key;
public CatchallLiteral(final SchemaDeclaration key) {
super();
this.key = key;
}
@Override
public Object clone() {
return new CatchallLiteral(this.key);
}
@Override
public boolean equals(Object otherTerm) {
if (!(otherTerm instanceof CatchallLiteral)) return false;
CatchallLiteral o = (CatchallLiteral) otherTerm;
return this.key.equals(o.key);
}
@Override
public int hashCode() {
return this.key.hashCode();
}
/**
* create a Solr query string from this literal
* @return a string which is a Solr query string
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(this.key.getSolrFieldName());
sb.append(AbstractSolrConnector.CATCHALL_DTERM);
return sb.toString();
}
/**
* check if the key/value pair of this literal occurs in the SolrDocument
* @param doc the document to match to this literal
* @return true, if the key of this literal is contained in the document and the
* value equals (does not equal) with the value if this literal (if the signature is false)
*/
@Override
public boolean matches(SolrDocument doc) {
Object v = doc.getFieldValue(this.key.getSolrFieldName());
if (v == null) return false; // this does not match if the field is missing
return true;
}
}
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