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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.
*/
package org.apache.pig;
import org.apache.pig.data.Tuple;
import org.junit.Test;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
public class TestTypedOutputEvalFunc {
private static class StringFunc extends TypedOutputEvalFunc<String> {
@Override
public String exec(Tuple input) throws IOException {
return "foo";
}
};
private static class IntegerFunc extends TypedOutputEvalFunc<Integer> {
@Override
public Integer exec(Tuple input) throws IOException {
return 1;
}
};
private static class FloatFunc extends TypedOutputEvalFunc<Float> {
@Override
public Float exec(Tuple input) throws IOException {
return 1.0f;
}
};
private static final TypedOutputEvalFunc<String> stringFunc = new TypedOutputEvalFunc<String>() {
@Override
public String exec(Tuple input) throws IOException {
return "foo";
}
};
private static final TypedOutputEvalFunc<Integer> intFunc = new TypedOutputEvalFunc<Integer>() {
@Override
public Integer exec(Tuple input) throws IOException {
return 1;
}
};
private static final TypedOutputEvalFunc<Float> floatFunc = new TypedOutputEvalFunc<Float>() {
@Override
public Float exec(Tuple input) throws IOException {
return 1.0f;
}
};
@Test
public final void testGetOutputTypes() throws IOException {
// Verify that type inference works for declared as well as anonymous classes.
assertEquals(String.class, stringFunc.getOutputTypeClass());
assertEquals(Integer.class, intFunc.getOutputTypeClass());
assertEquals(Float.class, floatFunc.getOutputTypeClass());
assertEquals(String.class, new StringFunc().getOutputTypeClass());
assertEquals(Integer.class, new IntegerFunc().getOutputTypeClass());
assertEquals(Float.class, new FloatFunc().getOutputTypeClass());
}
}