/*
* Copyright 2014 Red Hat, Inc. and/or its affiliates.
*
* 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.dashbuilder.dataset.filter;
/**
* Base class for defining a filter over a data set column.
*/
public abstract class ColumnFilter {
protected String columnId = null;
public ColumnFilter() {
}
public ColumnFilter(String columnId) {
this.columnId = columnId;
}
public String getColumnId() {
return columnId;
}
public void setColumnId(String columnId) {
this.columnId = columnId;
}
public abstract ColumnFilter cloneInstance();
public boolean equals(Object obj) {
try {
ColumnFilter other = (ColumnFilter) obj;
if (columnId != null && !columnId.equals(other.columnId)) return false;
return true;
} catch (ClassCastException e) {
return false;
}
}
}