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[Kernel] Remove the ColumnVector::getStruct API (delta-io#2131)
## Description Removes the `getStruct` API from `ColumnVector`. We will use a wrapper to convert to rows only for the ColumnarBatch/FilteredColumnarBatch row-based processing APIs. ## How was this patch tested? Existing tests should suffice.
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115 changes: 115 additions & 0 deletions
115
kernel/kernel-api/src/main/java/io/delta/kernel/internal/data/ChildVectorBasedRow.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| /* | ||
| * Copyright (2023) The Delta Lake Project Authors. | ||
| * | ||
| * 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 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 io.delta.kernel.internal.data; | ||
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| import java.math.BigDecimal; | ||
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| import io.delta.kernel.data.ArrayValue; | ||
| import io.delta.kernel.data.ColumnVector; | ||
| import io.delta.kernel.data.MapValue; | ||
| import io.delta.kernel.data.Row; | ||
| import io.delta.kernel.types.StructType; | ||
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| /** | ||
| * A {@link Row} implementation that wraps a set of child vectors for a specific {@code rowId}. | ||
| */ | ||
| public abstract class ChildVectorBasedRow implements Row { | ||
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| private final int rowId; | ||
| private final StructType schema; | ||
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| public ChildVectorBasedRow(int rowId, StructType schema) { | ||
| this.rowId = rowId; | ||
| this.schema = schema; | ||
| } | ||
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| @Override | ||
| public StructType getSchema() { | ||
| return schema; | ||
| } | ||
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| @Override | ||
| public boolean isNullAt(int ordinal) { | ||
| return getChild(ordinal).isNullAt(rowId); | ||
| } | ||
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| @Override | ||
| public boolean getBoolean(int ordinal) { | ||
| return getChild(ordinal).getBoolean(rowId); | ||
| } | ||
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| @Override | ||
| public byte getByte(int ordinal) { | ||
| return getChild(ordinal).getByte(rowId); | ||
| } | ||
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| @Override | ||
| public short getShort(int ordinal) { | ||
| return getChild(ordinal).getShort(rowId); | ||
| } | ||
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| @Override | ||
| public int getInt(int ordinal) { | ||
| return getChild(ordinal).getInt(rowId); | ||
| } | ||
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| @Override | ||
| public long getLong(int ordinal) { | ||
| return getChild(ordinal).getLong(rowId); | ||
| } | ||
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| @Override | ||
| public float getFloat(int ordinal) { | ||
| return getChild(ordinal).getFloat(rowId); | ||
| } | ||
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| @Override | ||
| public double getDouble(int ordinal) { | ||
| return getChild(ordinal).getDouble(rowId); | ||
| } | ||
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| @Override | ||
| public String getString(int ordinal) { | ||
| return getChild(ordinal).getString(rowId); | ||
| } | ||
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| @Override | ||
| public BigDecimal getDecimal(int ordinal) { | ||
| return getChild(ordinal).getDecimal(rowId); | ||
| } | ||
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| @Override | ||
| public byte[] getBinary(int ordinal) { | ||
| return getChild(ordinal).getBinary(rowId); | ||
| } | ||
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| @Override | ||
| public Row getStruct(int ordinal) { | ||
| return StructRow.fromStructVector(getChild(ordinal), rowId); | ||
| } | ||
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| @Override | ||
| public ArrayValue getArray(int ordinal) { | ||
| return getChild(ordinal).getArray(rowId); | ||
| } | ||
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| @Override | ||
| public MapValue getMap(int ordinal) { | ||
| return getChild(ordinal).getMap(rowId); | ||
| } | ||
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| protected abstract ColumnVector getChild(int ordinal); | ||
| } |
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