| /* |
| * 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.flink.types; |
| |
| import org.apache.flink.annotation.Public; |
| import org.apache.flink.core.memory.DataInputView; |
| import org.apache.flink.core.memory.DataOutputView; |
| import org.apache.flink.core.memory.MemorySegment; |
| |
| import java.io.IOException; |
| |
| /** |
| * Boxed serializable and comparable long integer type, representing the primitive type {@code |
| * long}. |
| */ |
| @Public |
| public class LongValue |
| implements NormalizableKey<LongValue>, |
| ResettableValue<LongValue>, |
| CopyableValue<LongValue> { |
| private static final long serialVersionUID = 1L; |
| |
| private long value; |
| |
| /** Initializes the encapsulated long with 0. */ |
| public LongValue() { |
| this.value = 0; |
| } |
| |
| /** |
| * Initializes the encapsulated long with the specified value. |
| * |
| * @param value Initial value of the encapsulated long. |
| */ |
| public LongValue(final long value) { |
| this.value = value; |
| } |
| |
| /** |
| * Returns the value of the encapsulated long. |
| * |
| * @return The value of the encapsulated long. |
| */ |
| public long getValue() { |
| return this.value; |
| } |
| |
| /** |
| * Sets the value of the encapsulated long to the specified value. |
| * |
| * @param value The new value of the encapsulated long. |
| */ |
| public void setValue(final long value) { |
| this.value = value; |
| } |
| |
| @Override |
| public void setValue(LongValue value) { |
| this.value = value.value; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see java.lang.Object#toString() |
| */ |
| @Override |
| public String toString() { |
| return String.valueOf(this.value); |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| @Override |
| public void read(final DataInputView in) throws IOException { |
| this.value = in.readLong(); |
| } |
| |
| @Override |
| public void write(final DataOutputView out) throws IOException { |
| out.writeLong(this.value); |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| @Override |
| public int compareTo(LongValue o) { |
| final long other = o.value; |
| return this.value < other ? -1 : this.value > other ? 1 : 0; |
| } |
| |
| @Override |
| public int hashCode() { |
| return 43 + (int) (this.value ^ this.value >>> 32); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| @Override |
| public boolean equals(final Object obj) { |
| if (obj instanceof LongValue) { |
| return ((LongValue) obj).value == this.value; |
| } |
| return false; |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| @Override |
| public int getMaxNormalizedKeyLen() { |
| return 8; |
| } |
| |
| @Override |
| public void copyNormalizedKey(MemorySegment target, int offset, int len) { |
| // see IntValue for an explanation of the logic |
| if (len == 8) { |
| // default case, full normalized key |
| target.putLongBigEndian(offset, value - Long.MIN_VALUE); |
| } else if (len <= 0) { |
| } else if (len < 8) { |
| long value = this.value - Long.MIN_VALUE; |
| for (int i = 0; len > 0; len--, i++) { |
| target.put(offset + i, (byte) (value >>> ((7 - i) << 3))); |
| } |
| } else { |
| target.putLongBigEndian(offset, value - Long.MIN_VALUE); |
| for (int i = 8; i < len; i++) { |
| target.put(offset + i, (byte) 0); |
| } |
| } |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| @Override |
| public int getBinaryLength() { |
| return 8; |
| } |
| |
| @Override |
| public void copyTo(LongValue target) { |
| target.value = this.value; |
| } |
| |
| @Override |
| public LongValue copy() { |
| return new LongValue(this.value); |
| } |
| |
| @Override |
| public void copy(DataInputView source, DataOutputView target) throws IOException { |
| target.write(source, 8); |
| } |
| } |