| /* |
| * Copyright 2009-2013 by The Regents of the University of California |
| * 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 from |
| * |
| * 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. |
| */ |
| /**
|
| * 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 edu.uci.ics.hivesterix.serde.lazy.objectinspector.primitive;
|
|
|
| import java.util.HashMap;
|
|
|
| import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory;
|
|
|
| /**
|
| * PrimitiveObjectInspectorFactory is the primary way to create new
|
| * PrimitiveObjectInspector instances.
|
| * The reason of having caches here is that ObjectInspector is because
|
| * ObjectInspectors do not have an internal state - so ObjectInspectors with the
|
| * same construction parameters should result in exactly the same
|
| * ObjectInspector.
|
| */
|
| public final class PrimitiveObjectInspectorFactory {
|
|
|
| public static final LazyBooleanObjectInspector LazyBooleanObjectInspector = new LazyBooleanObjectInspector();
|
| public static final LazyByteObjectInspector LazyByteObjectInspector = new LazyByteObjectInspector();
|
| public static final LazyShortObjectInspector LazyShortObjectInspector = new LazyShortObjectInspector();
|
| public static final LazyIntObjectInspector LazyIntObjectInspector = new LazyIntObjectInspector();
|
| public static final LazyLongObjectInspector LazyLongObjectInspector = new LazyLongObjectInspector();
|
| public static final LazyFloatObjectInspector LazyFloatObjectInspector = new LazyFloatObjectInspector();
|
| public static final LazyDoubleObjectInspector LazyDoubleObjectInspector = new LazyDoubleObjectInspector();
|
| public static final LazyStringObjectInspector LazyStringObjectInspector = new LazyStringObjectInspector(false,
|
| (byte) '\\');
|
| public static final LazyVoidObjectInspector LazyVoidObjectInspector = new LazyVoidObjectInspector();
|
|
|
| private static HashMap<PrimitiveCategory, AbstractPrimitiveLazyObjectInspector<?>> cachedPrimitiveLazyInspectorCache = new HashMap<PrimitiveCategory, AbstractPrimitiveLazyObjectInspector<?>>();
|
|
|
| static {
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.BOOLEAN, LazyBooleanObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.BYTE, LazyByteObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.SHORT, LazyShortObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.INT, LazyIntObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.LONG, LazyLongObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.FLOAT, LazyFloatObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.DOUBLE, LazyDoubleObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.STRING, LazyStringObjectInspector);
|
| cachedPrimitiveLazyInspectorCache.put(PrimitiveCategory.VOID, LazyVoidObjectInspector);
|
| }
|
|
|
| /**
|
| * Returns the PrimitiveWritableObjectInspector for the PrimitiveCategory.
|
| *
|
| * @param primitiveCategory
|
| */
|
| public static AbstractPrimitiveLazyObjectInspector<?> getPrimitiveLazyObjectInspector(
|
| PrimitiveCategory primitiveCategory) {
|
| AbstractPrimitiveLazyObjectInspector<?> result = cachedPrimitiveLazyInspectorCache.get(primitiveCategory);
|
| if (result == null) {
|
| throw new RuntimeException("Internal error: Cannot find ObjectInspector " + " for " + primitiveCategory);
|
| }
|
| return result;
|
| }
|
|
|
| private PrimitiveObjectInspectorFactory() {
|
| // prevent instantiation
|
| }
|
| }
|