Package org.apache.druid.segment.column
Class LongsColumn
- java.lang.Object
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- org.apache.druid.segment.column.LongsColumn
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- All Implemented Interfaces:
Closeable
,AutoCloseable
,HotLoopCallee
,BaseColumn
,NumericColumn
public class LongsColumn extends Object implements NumericColumn
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
static LongsColumn
create(ColumnarLongs column, ImmutableBitmap nullValueBitmap)
Factory method to create LongsColumn.long
getLongSingleValueRow(int rowNum)
void
inspectRuntimeShape(RuntimeShapeInspector inspector)
Implementations of this method should callinspector.visit()
with all fields of this class, which meet two conditions: 1.int
length()
Returns the row count of this column.ColumnValueSelector<?>
makeColumnValueSelector(ReadableOffset offset)
VectorValueSelector
makeVectorValueSelector(ReadableVectorOffset offset)
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.druid.segment.column.BaseColumn
makeVectorObjectSelector
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Method Detail
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create
public static LongsColumn create(ColumnarLongs column, ImmutableBitmap nullValueBitmap)
Factory method to create LongsColumn.
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length
public int length()
Description copied from interface:NumericColumn
Returns the row count of this column. Note that this method currently counts only non-null values. Using this method to get the length of a column that contains nulls will not work as expected. This method should be used only for non-nullable numeric columns such as the "__time" column.- Specified by:
length
in interfaceNumericColumn
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makeColumnValueSelector
public ColumnValueSelector<?> makeColumnValueSelector(ReadableOffset offset)
- Specified by:
makeColumnValueSelector
in interfaceBaseColumn
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makeVectorValueSelector
public VectorValueSelector makeVectorValueSelector(ReadableVectorOffset offset)
- Specified by:
makeVectorValueSelector
in interfaceBaseColumn
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getLongSingleValueRow
public long getLongSingleValueRow(int rowNum)
- Specified by:
getLongSingleValueRow
in interfaceNumericColumn
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close
public void close()
- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Specified by:
close
in interfaceNumericColumn
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inspectRuntimeShape
public void inspectRuntimeShape(RuntimeShapeInspector inspector)
Description copied from interface:HotLoopCallee
Implementations of this method should callinspector.visit()
with all fields of this class, which meet two conditions: 1. They are used in methods of this class, annotated withCalledFromHotLoop
2. They are either: a. Nullable objects b. Instances of HotLoopCallee c. Objects, which don't always have a specific class in runtime. For example, a field of typeSet
could beHashSet
orTreeSet
in runtime, depending on how this instance (the instance on which inspectRuntimeShape() is called) is configured. d. ByteBuffer or similar objects, where byte order matters e. boolean flags, affecting branch taking f. Arrays of objects, meeting any of conditions a-e.- Specified by:
inspectRuntimeShape
in interfaceHotLoopCallee
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