Class RunLengthBitPackingHybridValuesReader
- java.lang.Object
-
- org.apache.parquet.column.values.ValuesReader
-
- org.apache.parquet.column.values.rle.RunLengthBitPackingHybridValuesReader
-
public class RunLengthBitPackingHybridValuesReader extends ValuesReader
This ValuesReader does all the reading ininitFromPage(int, org.apache.parquet.bytes.ByteBufferInputStream)
and stores the values in an in memory buffer, which is less than ideal.
-
-
Constructor Summary
Constructors Constructor Description RunLengthBitPackingHybridValuesReader(int bitWidth)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
initFromPage(int valueCountL, org.apache.parquet.bytes.ByteBufferInputStream stream)
Called to initialize the column reader from a part of a page.boolean
readBoolean()
int
readInteger()
void
skip()
Skips the next value in the page-
Methods inherited from class org.apache.parquet.column.values.ValuesReader
getNextOffset, initFromPage, initFromPage, readBytes, readDouble, readFloat, readLong, readValueDictionaryId, skip, updateNextOffset
-
-
-
-
Method Detail
-
initFromPage
public void initFromPage(int valueCountL, org.apache.parquet.bytes.ByteBufferInputStream stream) throws IOException
Description copied from class:ValuesReader
Called to initialize the column reader from a part of a page. Implementations must consume all bytes from the input stream, leaving the stream ready to read the next section of data. The underlying implementation knows how much data to read, so a length is not provided. Each page may contain several sections:- repetition levels column
- definition levels column
- data column
- Overrides:
initFromPage
in classValuesReader
- Parameters:
valueCountL
- count of values in this pagestream
- an input stream containing the page data at the correct offset- Throws:
IOException
- if there is an exception while reading from the input stream
-
readInteger
public int readInteger()
- Overrides:
readInteger
in classValuesReader
- Returns:
- the next integer from the page
-
readBoolean
public boolean readBoolean()
- Overrides:
readBoolean
in classValuesReader
- Returns:
- the next boolean from the page
-
skip
public void skip()
Description copied from class:ValuesReader
Skips the next value in the page- Specified by:
skip
in classValuesReader
-
-