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[FLINK-2565] Support primitive arrays as keys
This closes apache#1043
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56 changes: 56 additions & 0 deletions
56
...ava/org/apache/flink/api/common/typeutils/base/array/BooleanPrimitiveArrayComparator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * 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.api.common.typeutils.base.array; | ||
|
|
||
| import static java.lang.Math.min; | ||
| import org.apache.flink.api.common.typeutils.TypeComparator; | ||
| import org.apache.flink.api.common.typeutils.base.BooleanComparator; | ||
|
|
||
| public class BooleanPrimitiveArrayComparator extends PrimitiveArrayComparator<boolean[], BooleanComparator> { | ||
| public BooleanPrimitiveArrayComparator(boolean ascending) { | ||
| super(ascending, new BooleanComparator(ascending)); | ||
| } | ||
|
|
||
| @Override | ||
| public int hash(boolean[] record) { | ||
| int result = 0; | ||
| for (boolean field : record) { | ||
| result += field ? 1231 : 1237; | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| @Override | ||
| public int compare(boolean[] first, boolean[] second) { | ||
| for (int x = 0; x < min(first.length, second.length); x++) { | ||
| int cmp = (second[x] == first[x] ? 0 : (first[x] ? 1 : -1)); | ||
| if (cmp != 0) { | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
| } | ||
| int cmp = first.length - second.length; | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
|
|
||
| @Override | ||
| public TypeComparator<boolean[]> duplicate() { | ||
| BooleanPrimitiveArrayComparator dupe = new BooleanPrimitiveArrayComparator(this.ascending); | ||
| dupe.setReference(this.reference); | ||
| return dupe; | ||
| } | ||
| } |
56 changes: 56 additions & 0 deletions
56
...n/java/org/apache/flink/api/common/typeutils/base/array/BytePrimitiveArrayComparator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * 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.api.common.typeutils.base.array; | ||
|
|
||
| import static java.lang.Math.min; | ||
| import org.apache.flink.api.common.typeutils.TypeComparator; | ||
| import org.apache.flink.api.common.typeutils.base.ByteComparator; | ||
|
|
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| public class BytePrimitiveArrayComparator extends PrimitiveArrayComparator<byte[], ByteComparator> { | ||
| public BytePrimitiveArrayComparator(boolean ascending) { | ||
| super(ascending, new ByteComparator(ascending)); | ||
| } | ||
|
|
||
| @Override | ||
| public int hash(byte[] record) { | ||
| int result = 0; | ||
| for (byte field : record) { | ||
| result += (int) field; | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| @Override | ||
| public int compare(byte[] first, byte[] second) { | ||
| for (int x = 0; x < min(first.length, second.length); x++) { | ||
| int cmp = first[x] - second[x]; | ||
| if (cmp != 0) { | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
| } | ||
| int cmp = first.length - second.length; | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
|
|
||
| @Override | ||
| public TypeComparator<byte[]> duplicate() { | ||
| BytePrimitiveArrayComparator dupe = new BytePrimitiveArrayComparator(this.ascending); | ||
| dupe.setReference(this.reference); | ||
| return dupe; | ||
| } | ||
| } |
56 changes: 56 additions & 0 deletions
56
...n/java/org/apache/flink/api/common/typeutils/base/array/CharPrimitiveArrayComparator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * 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.api.common.typeutils.base.array; | ||
|
|
||
| import static java.lang.Math.min; | ||
| import org.apache.flink.api.common.typeutils.TypeComparator; | ||
| import org.apache.flink.api.common.typeutils.base.CharComparator; | ||
|
|
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| public class CharPrimitiveArrayComparator extends PrimitiveArrayComparator<char[], CharComparator> { | ||
| public CharPrimitiveArrayComparator(boolean ascending) { | ||
| super(ascending, new CharComparator(ascending)); | ||
| } | ||
|
|
||
| @Override | ||
| public int hash(char[] record) { | ||
| int result = 0; | ||
| for (char field : record) { | ||
| result += (int) field; | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| @Override | ||
| public int compare(char[] first, char[] second) { | ||
| for (int x = 0; x < min(first.length, second.length); x++) { | ||
| int cmp = first[x] - second[x]; | ||
| if (cmp != 0) { | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
| } | ||
| int cmp = first.length - second.length; | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
|
|
||
| @Override | ||
| public TypeComparator<char[]> duplicate() { | ||
| CharPrimitiveArrayComparator dupe = new CharPrimitiveArrayComparator(this.ascending); | ||
| dupe.setReference(this.reference); | ||
| return dupe; | ||
| } | ||
| } |
57 changes: 57 additions & 0 deletions
57
...java/org/apache/flink/api/common/typeutils/base/array/DoublePrimitiveArrayComparator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * 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.api.common.typeutils.base.array; | ||
|
|
||
| import static java.lang.Math.min; | ||
| import org.apache.flink.api.common.typeutils.TypeComparator; | ||
| import org.apache.flink.api.common.typeutils.base.DoubleComparator; | ||
|
|
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| public class DoublePrimitiveArrayComparator extends PrimitiveArrayComparator<double[], DoubleComparator> { | ||
| public DoublePrimitiveArrayComparator(boolean ascending) { | ||
| super(ascending, new DoubleComparator(ascending)); | ||
| } | ||
|
|
||
| @Override | ||
| public int hash(double[] record) { | ||
| int result = 0; | ||
| for (double field : record) { | ||
| long bits = Double.doubleToLongBits(field); | ||
| result += (int) (bits ^ (bits >>> 32)); | ||
| } | ||
| return result; | ||
| } | ||
|
|
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| @Override | ||
| public int compare(double[] first, double[] second) { | ||
| for (int x = 0; x < min(first.length, second.length); x++) { | ||
| int cmp = Double.compare(first[x], second[x]); | ||
| if (cmp != 0) { | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
| } | ||
| int cmp = first.length - second.length; | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
|
|
||
| @Override | ||
| public TypeComparator<double[]> duplicate() { | ||
| DoublePrimitiveArrayComparator dupe = new DoublePrimitiveArrayComparator(this.ascending); | ||
| dupe.setReference(this.reference); | ||
| return dupe; | ||
| } | ||
| } |
56 changes: 56 additions & 0 deletions
56
.../java/org/apache/flink/api/common/typeutils/base/array/FloatPrimitiveArrayComparator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /* | ||
| * 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.api.common.typeutils.base.array; | ||
|
|
||
| import static java.lang.Math.min; | ||
| import org.apache.flink.api.common.typeutils.TypeComparator; | ||
| import org.apache.flink.api.common.typeutils.base.FloatComparator; | ||
|
|
||
| public class FloatPrimitiveArrayComparator extends PrimitiveArrayComparator<float[], FloatComparator> { | ||
| public FloatPrimitiveArrayComparator(boolean ascending) { | ||
| super(ascending, new FloatComparator(ascending)); | ||
| } | ||
|
|
||
| @Override | ||
| public int hash(float[] record) { | ||
| int result = 0; | ||
| for (float field : record) { | ||
| result += Float.floatToIntBits(field); | ||
| } | ||
| return result; | ||
| } | ||
|
|
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| @Override | ||
| public int compare(float[] first, float[] second) { | ||
| for (int x = 0; x < min(first.length, second.length); x++) { | ||
| int cmp = Float.compare(first[x], second[x]); | ||
| if (cmp != 0) { | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
| } | ||
| int cmp = first.length - second.length; | ||
| return ascending ? cmp : -cmp; | ||
| } | ||
|
|
||
| @Override | ||
| public TypeComparator<float[]> duplicate() { | ||
| FloatPrimitiveArrayComparator dupe = new FloatPrimitiveArrayComparator(this.ascending); | ||
| dupe.setReference(this.reference); | ||
| return dupe; | ||
| } | ||
| } |
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