org.apache.parquet.schema

Class MessageType

java.lang.Object

org.apache.parquet.schema.Type

org.apache.parquet.schema.GroupType

org.apache.parquet.schema.MessageType

public final class MessageType
extends GroupType

The root of a schema

Author:

Julien Le Dem

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.parquet.schema.Type

Type.ID, Type.Repetition

Constructor Summary

Constructors

Constructor and Description
MessageType(String name, List<Type> fields)
MessageType(String name, Type... fields)

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(TypeVisitor visitor) Visits this type with the given visitor
void	checkContains(Type subType)
boolean	containsPath(String[] path)
<T> T	convertWith(TypeConverter<T> converter)
ColumnDescriptor	getColumnDescription(String[] path)
List<ColumnDescriptor>	getColumns()
int	getMaxDefinitionLevel(String... path)
int	getMaxRepetitionLevel(String... path)
List<String[]>	getPaths()
Type	getType(String... path)
MessageType	union(MessageType toMerge)
MessageType	union(MessageType toMerge, boolean strict)
void	writeToStringBuilder(StringBuilder sb, String indent) Writes a string representation to the provided StringBuilder

Methods inherited from class org.apache.parquet.schema.GroupType

containsField, containsPath, convertChildren, equals, getFieldCount, getFieldIndex, getFieldName, getFields, getMaxDefinitionLevel, getMaxRepetitionLevel, getPaths, getType, getType, getType, hashCode, isPrimitive, typeEquals, typeHashCode, union, union, withId, withNewFields, withNewFields

Methods inherited from class org.apache.parquet.schema.Type

asGroupType, asPrimitiveType, eqOrBothNull, equals, getId, getName, getOriginalType, getRepetition, isRepetition, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageType

public MessageType(String name,
           Type... fields)

Parameters:

name - the name of the type

fields - the fields contained by this message

MessageType

public MessageType(String name,
           List<Type> fields)

Parameters:

name - the name of the type

fields - the fields contained by this message

Method Detail

accept

public void accept(TypeVisitor visitor)

Visits this type with the given visitor

Overrides:

accept in class GroupType

Parameters:

visitor - the visitor to visit this type

writeToStringBuilder

public void writeToStringBuilder(StringBuilder sb,
                        String indent)

Writes a string representation to the provided StringBuilder

Overrides:

writeToStringBuilder in class GroupType

Parameters:

sb - the StringBuilder to write itself to

indent - indentation level

getMaxRepetitionLevel

public int getMaxRepetitionLevel(String... path)

Returns:

the max repetition level that might be needed to encode the type at 'path'.

getMaxDefinitionLevel

public int getMaxDefinitionLevel(String... path)

Returns:

the max repetition level that might be needed to encode the type at 'path'.

getType

public Type getType(String... path)

getColumnDescription

public ColumnDescriptor getColumnDescription(String[] path)

getPaths

public List<String[]> getPaths()

getColumns

public List<ColumnDescriptor> getColumns()

checkContains

public void checkContains(Type subType)

convertWith

public <T> T convertWith(TypeConverter<T> converter)

containsPath

public boolean containsPath(String[] path)

union

public MessageType union(MessageType toMerge)

union

public MessageType union(MessageType toMerge,
                boolean strict)