Class FileMetaData
- java.lang.Object
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- org.apache.parquet.hadoop.metadata.FileMetaData
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- All Implemented Interfaces:
Serializable
public final class FileMetaData extends Object implements Serializable
File level meta data (Schema, codec, ...)- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
FileMetaData.EncryptionType
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Constructor Summary
Constructors Constructor Description FileMetaData(org.apache.parquet.schema.MessageType schema, Map<String,String> keyValueMetaData, String createdBy)
FileMetaData for writers.FileMetaData(org.apache.parquet.schema.MessageType schema, Map<String,String> keyValueMetaData, String createdBy, InternalFileDecryptor fileDecryptor)
Deprecated.FileMetaData(org.apache.parquet.schema.MessageType schema, Map<String,String> keyValueMetaData, String createdBy, FileMetaData.EncryptionType encryptionType, InternalFileDecryptor fileDecryptor)
FileMetaData for readers (decryptors).
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description String
getCreatedBy()
FileMetaData.EncryptionType
getEncryptionType()
InternalFileDecryptor
getFileDecryptor()
Map<String,String>
getKeyValueMetaData()
org.apache.parquet.schema.MessageType
getSchema()
String
toString()
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Constructor Detail
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FileMetaData
public FileMetaData(org.apache.parquet.schema.MessageType schema, Map<String,String> keyValueMetaData, String createdBy)
FileMetaData for writers.- Parameters:
schema
- the schema for the filekeyValueMetaData
- the app specific metadatacreatedBy
- the description of the library that created the file- Throws:
NullPointerException
- if schema or keyValueMetaData isnull
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FileMetaData
@Deprecated public FileMetaData(org.apache.parquet.schema.MessageType schema, Map<String,String> keyValueMetaData, String createdBy, InternalFileDecryptor fileDecryptor)
Deprecated.
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FileMetaData
public FileMetaData(org.apache.parquet.schema.MessageType schema, Map<String,String> keyValueMetaData, String createdBy, FileMetaData.EncryptionType encryptionType, InternalFileDecryptor fileDecryptor)
FileMetaData for readers (decryptors).
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Method Detail
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getSchema
public org.apache.parquet.schema.MessageType getSchema()
- Returns:
- the schema for the file
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getKeyValueMetaData
public Map<String,String> getKeyValueMetaData()
- Returns:
- meta data for extensions
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getCreatedBy
public String getCreatedBy()
- Returns:
- the description of the library that created the file
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getFileDecryptor
public InternalFileDecryptor getFileDecryptor()
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getEncryptionType
public FileMetaData.EncryptionType getEncryptionType()
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