/*
* 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 com.facebook.presto.accumulo.udf;
import com.facebook.presto.spi.function.Description;
import com.facebook.presto.spi.function.ScalarFunction;
import com.facebook.presto.spi.function.SqlType;
import com.facebook.presto.spi.type.StandardTypes;
import io.airlift.slice.Slice;
import io.airlift.slice.Slices;
import java.util.UUID;
/**
* Class containing String-based SQL functions for Accumulo connector
*/
public class AccumuloStringFunctions
{
private AccumuloStringFunctions()
{}
@Description("Returns a randomly generated UUID")
@ScalarFunction(value = "uuid", deterministic = false)
@SqlType(StandardTypes.VARCHAR)
public static Slice UUID()
{
return Slices.utf8Slice(UUID.randomUUID().toString());
}
}