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1 | /* |
2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
3 | * contributor license agreements. See the NOTICE file distributed with | |
4 | * this work for additional information regarding copyright ownership. | |
5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
6 | * (the "License"); you may not use this file except in compliance with | |
7 | * the License. You may obtain a copy of the License at | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | */ | |
17 | ||
18 | package org.apache.arrow.vector.compare; | |
19 | ||
20 | import org.apache.arrow.vector.BaseFixedWidthVector; | |
21 | import org.apache.arrow.vector.BaseLargeVariableWidthVector; | |
22 | import org.apache.arrow.vector.BaseVariableWidthVector; | |
23 | import org.apache.arrow.vector.ExtensionTypeVector; | |
24 | import org.apache.arrow.vector.NullVector; | |
25 | import org.apache.arrow.vector.complex.DenseUnionVector; | |
26 | import org.apache.arrow.vector.complex.FixedSizeListVector; | |
27 | import org.apache.arrow.vector.complex.LargeListVector; | |
28 | import org.apache.arrow.vector.complex.ListVector; | |
29 | import org.apache.arrow.vector.complex.NonNullableStructVector; | |
30 | import org.apache.arrow.vector.complex.UnionVector; | |
31 | ||
32 | /** | |
33 | * Generic visitor to visit a {@link org.apache.arrow.vector.ValueVector}. | |
34 | * @param <OUT> the output result type. | |
35 | * @param <IN> the input data together with visitor. | |
36 | */ | |
37 | public interface VectorVisitor<OUT, IN> { | |
38 | ||
39 | OUT visit(BaseFixedWidthVector left, IN value); | |
40 | ||
41 | OUT visit(BaseVariableWidthVector left, IN value); | |
42 | ||
43 | OUT visit(BaseLargeVariableWidthVector left, IN value); | |
44 | ||
45 | OUT visit(ListVector left, IN value); | |
46 | ||
47 | OUT visit(FixedSizeListVector left, IN value); | |
48 | ||
49 | OUT visit(LargeListVector left, IN value); | |
50 | ||
51 | OUT visit(NonNullableStructVector left, IN value); | |
52 | ||
53 | OUT visit(UnionVector left, IN value); | |
54 | ||
55 | OUT visit(DenseUnionVector left, IN value); | |
56 | ||
57 | OUT visit(NullVector left, IN value); | |
58 | ||
59 | OUT visit(ExtensionTypeVector<?> left, IN value); | |
60 | } | |
61 |