UnknownFilterBuilder.java

/**
 *  Copyright 2012 Universitat Pompeu Fabra.
 *
 *  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 org.onexus.collection.store.sql.filters;

import org.onexus.collection.api.query.Filter;
import org.onexus.collection.api.query.Query;
import org.onexus.collection.store.sql.SqlCollectionStore;

public class UnknownFilterBuilder implements FilterBuilder {

    public UnknownFilterBuilder() {
    }

    @Override
    public boolean canBuild(Filter filter) {
        return false;
    }

    @Override
    public void build(SqlCollectionStore store, Query query, StringBuilder where, Filter filter) {
        where.append("NOT ISNULL(\" ERROR: Unknown filter -- ");
        filter.toString(where, false);
        where.append(" -- \")");
    }
}