org.bytedeco.arrow

Class DataType

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.Fingerprintable

org.bytedeco.arrow.DataType

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

BaseBinaryType, ExtensionType, FixedWidthType, NestedType, NullType

@Namespace(value="arrow")
 @NoOffset
 @Properties(inherit=arrow.class)
public class DataType
extends Fingerprintable

\brief Base class for all data types Data types in this library are all *logical*. They can be expressed as either a primitive physical type (bytes or bits of some fixed size), a nested type consisting of other data types, or another data type (e.g. a timestamp encoded as an int64). Simple datatypes may be entirely described by their Type::type id, but complex datatypes are usually parametric.

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
DataType(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
Status	Accept(TypeVisitor visitor)
Field	child(int i) \brief Return whether the types are equal
FieldVector	children()
boolean	Equals(DataType other)
boolean	Equals(DataType other, boolean check_metadata) \brief Return whether the types are equal Types that are logically convertible from one to another (e.g.
int	id() \brief Return the type category
DataTypeLayout	layout() \brief Return the data type layout.
String	name() \brief A string name of the type, omitting any child fields \note Experimental API
int	num_children()
String	ToString() \brief A string representation of the type, including any children

Methods inherited from class org.bytedeco.arrow.Fingerprintable

fingerprint, metadata_fingerprint

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetof, parseBytes, physicalBytes, position, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

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

Constructor Detail

DataType

public DataType(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

Method Detail

Equals

@Cast(value="bool")
public boolean Equals(@Const @ByRef
                                          DataType other,
                                          @Cast(value="bool")
                                          boolean check_metadata)

\brief Return whether the types are equal Types that are logically convertible from one to another (e.g. List and Binary) are NOT equal.

Equals

@Cast(value="bool")
public boolean Equals(@Const @ByRef
                                          DataType other)

child

@SharedPtr
 @ByVal
public Field child(int i)

\brief Return whether the types are equal

children

@Const
 @ByRef
public FieldVector children()

num_children

public int num_children()

Accept

@ByVal
public Status Accept(TypeVisitor visitor)

ToString

@StdString
public String ToString()

\brief A string representation of the type, including any children

name

@StdString
public String name()

\brief A string name of the type, omitting any child fields \note Experimental API

Since:

0.7.0

layout

@ByVal
public DataTypeLayout layout()

\brief Return the data type layout. Children are not included. \note Experimental API

id

@Cast(value="arrow::Type::type")
public int id()

\brief Return the type category