parquet.schema

Class GroupType

java.lang.Object

parquet.schema.Type

parquet.schema.GroupType

Direct Known Subclasses:

MessageType

public class GroupType
extends Type

Represents a group type: a list of fields

Author:

Julien Le Dem

Nested Class Summary

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

Type.Repetition

Constructor Summary

Constructors

Constructor and Description
GroupType(Type.Repetition repetition, String name, List<Type> fields)
GroupType(Type.Repetition repetition, String name, OriginalType originalType, List<Type> fields)
GroupType(Type.Repetition repetition, String name, OriginalType originalType, Type... fields)
GroupType(Type.Repetition repetition, String name, Type... fields)

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(TypeVisitor visitor) Visits this type with the given visitor
boolean	containsField(String name)
protected boolean	containsPath(String[] path, int depth)
protected <T> List<T>	convertChildren(List<GroupType> path, TypeConverter<T> converter)
int	getFieldCount()
int	getFieldIndex(String name)
String	getFieldName(int index) returns the name of the corresponding field
List<Type>	getFields()
protected int	getMaxDefinitionLevel(String[] path, int depth)
protected int	getMaxRepetitionLevel(String[] path, int depth)
protected List<String[]>	getPaths(int depth)
Type	getType(int index)
Type	getType(String fieldName)
protected Type	getType(String[] path, int depth)
boolean	isPrimitive()
protected boolean	typeEquals(Type other)
protected int	typeHashCode()
void	writeToStringBuilder(StringBuilder sb, String indent) Writes a string representation to the provided StringBuilder

Methods inherited from class parquet.schema.Type

asGroupType, asPrimitiveType, equals, getName, getOriginalType, getRepetition, hashCode, isRepetition, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupType

public GroupType(Type.Repetition repetition,
         String name,
         List<Type> fields)

Parameters:

repetition - OPTIONAL, REPEATED, REQUIRED

name - the name of the field

fields - the contained fields

GroupType

public GroupType(Type.Repetition repetition,
         String name,
         Type... fields)

Parameters:

required -

name -

fields -

See Also:

GroupType#GroupType(Repetition, String, List)

GroupType

public GroupType(Type.Repetition repetition,
         String name,
         OriginalType originalType,
         Type... fields)

GroupType

public GroupType(Type.Repetition repetition,
         String name,
         OriginalType originalType,
         List<Type> fields)

Method Detail

getFieldName

public String getFieldName(int index)

returns the name of the corresponding field

Parameters:

index - the index of the desired field in this type

Returns:

the name of the field at this index

containsField

public boolean containsField(String name)

Parameters:

name - the requested name

Returns:

whether this type contains a field with that name

getFieldIndex

public int getFieldIndex(String name)

Parameters:

name -

Returns:

the index of the field with that name

getFields

public List<Type> getFields()

Returns:

the fields contained in this type

getFieldCount

public int getFieldCount()

Returns:

the number of fields in this type

isPrimitive

public boolean isPrimitive()

Specified by:

isPrimitive in class Type

Returns:

false

getType

public Type getType(String fieldName)

Parameters:

fieldName -

Returns:

the type of this field by name

getType

public Type getType(int index)

Parameters:

index -

Returns:

the type of this field by index

writeToStringBuilder

public void writeToStringBuilder(StringBuilder sb,
                        String indent)

Writes a string representation to the provided StringBuilder

Specified by:

writeToStringBuilder in class Type

Parameters:

sb - the StringBuilder to write itself to

accept

public void accept(TypeVisitor visitor)

Visits this type with the given visitor

Specified by:

accept in class Type

Parameters:

visitor - the visitor to visit this type

typeHashCode

protected int typeHashCode()

Specified by:

typeHashCode in class Type

typeEquals

protected boolean typeEquals(Type other)

Specified by:

typeEquals in class Type

getMaxRepetitionLevel

protected int getMaxRepetitionLevel(String[] path,
                        int depth)

Specified by:

getMaxRepetitionLevel in class Type

getMaxDefinitionLevel

protected int getMaxDefinitionLevel(String[] path,
                        int depth)

Specified by:

getMaxDefinitionLevel in class Type

getType

protected Type getType(String[] path,
           int depth)

Specified by:

getType in class Type

containsPath

protected boolean containsPath(String[] path,
                   int depth)

Specified by:

containsPath in class Type

getPaths

protected List<String[]> getPaths(int depth)

Specified by:

getPaths in class Type

convertChildren

protected <T> List<T> convertChildren(List<GroupType> path,
                          TypeConverter<T> converter)