Class BinaryPlainValuesReader
- java.lang.Object
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- org.apache.parquet.column.values.ValuesReader
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- org.apache.parquet.column.values.plain.BinaryPlainValuesReader
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public class BinaryPlainValuesReader extends ValuesReader
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Constructor Summary
Constructors Constructor Description BinaryPlainValuesReader()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
initFromPage(int valueCount, org.apache.parquet.bytes.ByteBufferInputStream stream)
Called to initialize the column reader from a part of a page.Binary
readBytes()
void
skip()
Skips the next value in the page-
Methods inherited from class org.apache.parquet.column.values.ValuesReader
getNextOffset, initFromPage, initFromPage, readBoolean, readDouble, readFloat, readInteger, readLong, readValueDictionaryId, skip, updateNextOffset
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Method Detail
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readBytes
public Binary readBytes()
- Overrides:
readBytes
in classValuesReader
- Returns:
- the next Binary from the page
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skip
public void skip()
Description copied from class:ValuesReader
Skips the next value in the page- Specified by:
skip
in classValuesReader
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initFromPage
public void initFromPage(int valueCount, 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:
valueCount
- 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
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