parquet.format

Class PageHeader

java.lang.Object

parquet.format.PageHeader

All Implemented Interfaces:

Serializable, Cloneable, Comparable<PageHeader>, org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

public class PageHeader
extends Object
implements org.apache.thrift.TBase<PageHeader,PageHeader._Fields>, Serializable, Cloneable

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PageHeader._Fields The set of fields this struct contains, along with convenience methods for finding and manipulating them.

Field Summary

Fields

Modifier and Type	Field and Description
int	compressed_page_size Compressed page size in bytes (not including this header) *
int	crc 32bit crc for the data below.
DataPageHeader	data_page_header
DictionaryPageHeader	dictionary_page_header
IndexPageHeader	index_page_header
static Map<PageHeader._Fields,org.apache.thrift.meta_data.FieldMetaData>	metaDataMap
PageType	type the type of the page: indicates which of the *_header fields is set *
int	uncompressed_page_size Uncompressed page size in bytes (not including this header) *

Constructor Summary

Constructors

Constructor and Description
PageHeader()
PageHeader(PageHeader other) Performs a deep copy on other.
PageHeader(PageType type, int uncompressed_page_size, int compressed_page_size)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
int	compareTo(PageHeader other)
PageHeader	deepCopy()
boolean	equals(Object that)
boolean	equals(PageHeader that)
PageHeader._Fields	fieldForId(int fieldId)
int	getCompressed_page_size() Compressed page size in bytes (not including this header) *
int	getCrc() 32bit crc for the data below.
DataPageHeader	getData_page_header()
DictionaryPageHeader	getDictionary_page_header()
Object	getFieldValue(PageHeader._Fields field)
IndexPageHeader	getIndex_page_header()
PageType	getType() the type of the page: indicates which of the *_header fields is set *
int	getUncompressed_page_size() Uncompressed page size in bytes (not including this header) *
int	hashCode()
boolean	isSet(PageHeader._Fields field) Returns true if field corresponding to fieldID is set (has been asigned a value) and false otherwise
boolean	isSetCompressed_page_size() Returns true if field compressed_page_size is set (has been asigned a value) and false otherwise
boolean	isSetCrc() Returns true if field crc is set (has been asigned a value) and false otherwise
boolean	isSetData_page_header() Returns true if field data_page_header is set (has been asigned a value) and false otherwise
boolean	isSetDictionary_page_header() Returns true if field dictionary_page_header is set (has been asigned a value) and false otherwise
boolean	isSetIndex_page_header() Returns true if field index_page_header is set (has been asigned a value) and false otherwise
boolean	isSetType() Returns true if field type is set (has been asigned a value) and false otherwise
boolean	isSetUncompressed_page_size() Returns true if field uncompressed_page_size is set (has been asigned a value) and false otherwise
void	read(org.apache.thrift.protocol.TProtocol iprot)
PageHeader	setCompressed_page_size(int compressed_page_size) Compressed page size in bytes (not including this header) *
void	setCompressed_page_sizeIsSet(boolean value)
PageHeader	setCrc(int crc) 32bit crc for the data below.
void	setCrcIsSet(boolean value)
PageHeader	setData_page_header(DataPageHeader data_page_header)
void	setData_page_headerIsSet(boolean value)
PageHeader	setDictionary_page_header(DictionaryPageHeader dictionary_page_header)
void	setDictionary_page_headerIsSet(boolean value)
void	setFieldValue(PageHeader._Fields field, Object value)
PageHeader	setIndex_page_header(IndexPageHeader index_page_header)
void	setIndex_page_headerIsSet(boolean value)
PageHeader	setType(PageType type) the type of the page: indicates which of the *_header fields is set *
void	setTypeIsSet(boolean value)
PageHeader	setUncompressed_page_size(int uncompressed_page_size) Uncompressed page size in bytes (not including this header) *
void	setUncompressed_page_sizeIsSet(boolean value)
String	toString()
void	unsetCompressed_page_size()
void	unsetCrc()
void	unsetData_page_header()
void	unsetDictionary_page_header()
void	unsetIndex_page_header()
void	unsetType()
void	unsetUncompressed_page_size()
void	validate()
void	write(org.apache.thrift.protocol.TProtocol oprot)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

type

public PageType type

the type of the page: indicates which of the *_header fields is set *

See Also:

PageType

uncompressed_page_size

public int uncompressed_page_size

Uncompressed page size in bytes (not including this header) *

compressed_page_size

public int compressed_page_size

Compressed page size in bytes (not including this header) *

crc

public int crc

32bit crc for the data below. This allows for disabling checksumming in HDFS if only a few pages needs to be read

data_page_header

public DataPageHeader data_page_header

index_page_header

public IndexPageHeader index_page_header

dictionary_page_header

public DictionaryPageHeader dictionary_page_header

metaDataMap

public static final Map<PageHeader._Fields,org.apache.thrift.meta_data.FieldMetaData> metaDataMap

Constructor Detail

PageHeader

public PageHeader()

PageHeader

public PageHeader(PageType type,
          int uncompressed_page_size,
          int compressed_page_size)

PageHeader

public PageHeader(PageHeader other)

Performs a deep copy on other.

Method Detail

deepCopy

public PageHeader deepCopy()

Specified by:

deepCopy in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

clear

public void clear()

Specified by:

clear in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

getType

public PageType getType()

the type of the page: indicates which of the *_header fields is set *

See Also:

PageType

setType

public PageHeader setType(PageType type)

the type of the page: indicates which of the *_header fields is set *

See Also:

PageType

unsetType

public void unsetType()

isSetType

public boolean isSetType()

Returns true if field type is set (has been asigned a value) and false otherwise

setTypeIsSet

public void setTypeIsSet(boolean value)

getUncompressed_page_size

public int getUncompressed_page_size()

Uncompressed page size in bytes (not including this header) *

setUncompressed_page_size

public PageHeader setUncompressed_page_size(int uncompressed_page_size)

Uncompressed page size in bytes (not including this header) *

unsetUncompressed_page_size

public void unsetUncompressed_page_size()

isSetUncompressed_page_size

public boolean isSetUncompressed_page_size()

Returns true if field uncompressed_page_size is set (has been asigned a value) and false otherwise

setUncompressed_page_sizeIsSet

public void setUncompressed_page_sizeIsSet(boolean value)

getCompressed_page_size

public int getCompressed_page_size()

Compressed page size in bytes (not including this header) *

setCompressed_page_size

public PageHeader setCompressed_page_size(int compressed_page_size)

Compressed page size in bytes (not including this header) *

unsetCompressed_page_size

public void unsetCompressed_page_size()

isSetCompressed_page_size

public boolean isSetCompressed_page_size()

Returns true if field compressed_page_size is set (has been asigned a value) and false otherwise

setCompressed_page_sizeIsSet

public void setCompressed_page_sizeIsSet(boolean value)

getCrc

public int getCrc()

32bit crc for the data below. This allows for disabling checksumming in HDFS if only a few pages needs to be read

setCrc

public PageHeader setCrc(int crc)

32bit crc for the data below. This allows for disabling checksumming in HDFS if only a few pages needs to be read

unsetCrc

public void unsetCrc()

isSetCrc

public boolean isSetCrc()

Returns true if field crc is set (has been asigned a value) and false otherwise

setCrcIsSet

public void setCrcIsSet(boolean value)

getData_page_header

public DataPageHeader getData_page_header()

setData_page_header

public PageHeader setData_page_header(DataPageHeader data_page_header)

unsetData_page_header

public void unsetData_page_header()

isSetData_page_header

public boolean isSetData_page_header()

Returns true if field data_page_header is set (has been asigned a value) and false otherwise

setData_page_headerIsSet

public void setData_page_headerIsSet(boolean value)

getIndex_page_header

public IndexPageHeader getIndex_page_header()

setIndex_page_header

public PageHeader setIndex_page_header(IndexPageHeader index_page_header)

unsetIndex_page_header

public void unsetIndex_page_header()

isSetIndex_page_header

public boolean isSetIndex_page_header()

Returns true if field index_page_header is set (has been asigned a value) and false otherwise

setIndex_page_headerIsSet

public void setIndex_page_headerIsSet(boolean value)

getDictionary_page_header

public DictionaryPageHeader getDictionary_page_header()

setDictionary_page_header

public PageHeader setDictionary_page_header(DictionaryPageHeader dictionary_page_header)

unsetDictionary_page_header

public void unsetDictionary_page_header()

isSetDictionary_page_header

public boolean isSetDictionary_page_header()

Returns true if field dictionary_page_header is set (has been asigned a value) and false otherwise

setDictionary_page_headerIsSet

public void setDictionary_page_headerIsSet(boolean value)

setFieldValue

public void setFieldValue(PageHeader._Fields field,
                 Object value)

Specified by:

setFieldValue in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

getFieldValue

public Object getFieldValue(PageHeader._Fields field)

Specified by:

getFieldValue in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

isSet

public boolean isSet(PageHeader._Fields field)

Returns true if field corresponding to fieldID is set (has been asigned a value) and false otherwise

Specified by:

isSet in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

equals

public boolean equals(Object that)

Overrides:

equals in class Object

equals

public boolean equals(PageHeader that)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(PageHeader other)

Specified by:

compareTo in interface Comparable<PageHeader>

fieldForId

public PageHeader._Fields fieldForId(int fieldId)

Specified by:

fieldForId in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

read

public void read(org.apache.thrift.protocol.TProtocol iprot)
          throws org.apache.thrift.TException

Specified by:

read in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

Throws:

org.apache.thrift.TException

write

public void write(org.apache.thrift.protocol.TProtocol oprot)
           throws org.apache.thrift.TException

Specified by:

write in interface org.apache.thrift.TBase<PageHeader,PageHeader._Fields>

Throws:

org.apache.thrift.TException

toString

public String toString()

Overrides:

toString in class Object

validate

public void validate()
              throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException