/*
* Licensed to Crate under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership. Crate licenses this file
* to you 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial
* agreement.
*/
package io.crate.analyze.relations;
import io.crate.analyze.symbol.Field;
import io.crate.analyze.symbol.Function;
import io.crate.exceptions.ColumnUnknownException;
import io.crate.metadata.Path;
import io.crate.metadata.table.Operation;
import io.crate.metadata.table.TableInfo;
import io.crate.metadata.tablefunctions.TableFunctionImplementation;
public class TableFunctionRelation extends TableRelation {
private final TableFunctionImplementation functionImplementation;
private final Function function;
public TableFunctionRelation(TableInfo tableInfo, TableFunctionImplementation functionImplementation, Function function) {
super(tableInfo);
this.functionImplementation = functionImplementation;
this.function = function;
}
public Function function() {
return function;
}
public TableFunctionImplementation functionImplementation() {
return functionImplementation;
}
@Override
public <C, R> R accept(AnalyzedRelationVisitor<C, R> visitor, C context) {
return visitor.visitTableFunctionRelation(this, context);
}
@Override
public Field getField(Path path, Operation operation) throws UnsupportedOperationException, ColumnUnknownException {
if (operation == Operation.READ) {
return getField(path);
}
throw new UnsupportedOperationException("Table functions don't support write operations");
}
}