/*
* Licensed to CRATE Technology GmbH ("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.operation.scalar.cast;
import io.crate.metadata.DynamicFunctionResolver;
import io.crate.metadata.FunctionIdent;
import io.crate.metadata.FunctionImplementation;
import io.crate.metadata.FunctionInfo;
import io.crate.operation.scalar.ScalarFunctionModule;
import io.crate.planner.symbol.Function;
import io.crate.types.DataType;
import io.crate.types.DataTypes;
import java.util.List;
public class ToTimestampFunction extends ToPrimitiveFunction<Long> {
public static final String NAME = "toTimestamp";
public static void register(ScalarFunctionModule module) {
module.register(NAME, new Resolver());
}
public ToTimestampFunction(FunctionInfo info) {
super(info);
}
private static class Resolver implements DynamicFunctionResolver {
@Override
public FunctionImplementation<Function> getForTypes(List<DataType> dataTypes) throws IllegalArgumentException {
ToPrimitiveFunction.checkPreconditions(dataTypes);
return new ToTimestampFunction(new FunctionInfo(new FunctionIdent(NAME, dataTypes), DataTypes.TIMESTAMP));
}
}
}