Package org.apache.calcite.avatica

Class ColumnMetaData

java.lang.Object

org.apache.calcite.avatica.ColumnMetaData

public class ColumnMetaData
extends java.lang.Object

Metadata for a column.

(Compare with ResultSetMetaData.)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ColumnMetaData.ArrayType	Array type.
static class	ColumnMetaData.AvaticaType	Base class for a column type.
static class	ColumnMetaData.Rep	Description of the type used to internally represent a value.
static class	ColumnMetaData.ScalarType	Scalar type.
static class	ColumnMetaData.StructType	Record type.

Field Summary

Fields

Modifier and Type	Field	Description
boolean	autoIncrement
boolean	caseSensitive
private static com.google.protobuf.Descriptors.FieldDescriptor	CATALOG_NAME_DESCRIPTOR
java.lang.String	catalogName
private static com.google.protobuf.Descriptors.FieldDescriptor	COLUMN_CLASS_NAME_DESCRIPTOR
private static com.google.protobuf.Descriptors.FieldDescriptor	COLUMN_NAME_DESCRIPTOR
java.lang.String	columnClassName
java.lang.String	columnName
boolean	currency
boolean	definitelyWritable
int	displaySize
java.lang.String	label
private static com.google.protobuf.Descriptors.FieldDescriptor	LABEL_DESCRIPTOR
int	nullable
int	ordinal
int	precision
boolean	readOnly
int	scale
private static com.google.protobuf.Descriptors.FieldDescriptor	SCHEMA_NAME_DESCRIPTOR
java.lang.String	schemaName
boolean	searchable
boolean	signed
private static com.google.protobuf.Descriptors.FieldDescriptor	TABLE_NAME_DESCRIPTOR
java.lang.String	tableName
ColumnMetaData.AvaticaType	type
boolean	writable

Constructor Summary

Constructors

Constructor

Description

ColumnMetaData(int ordinal, boolean autoIncrement, boolean caseSensitive, boolean searchable, boolean currency, int nullable, boolean signed, int displaySize, java.lang.String label, java.lang.String columnName, java.lang.String schemaName, int precision, int scale, java.lang.String tableName, java.lang.String catalogName, ColumnMetaData.AvaticaType type, boolean readOnly, boolean writable, boolean definitelyWritable, java.lang.String columnClassName)

Method Summary

Modifier and Type	Method	Description
static ColumnMetaData.ArrayType	array(ColumnMetaData.AvaticaType componentType, java.lang.String typeName, ColumnMetaData.Rep rep)	Creates an ColumnMetaData.ArrayType.
static ColumnMetaData	dummy(ColumnMetaData.AvaticaType type, boolean nullable)	Creates a ColumnMetaData for result sets that are not based on a struct but need to have a single 'field' for purposes of ResultSetMetaData.
boolean	equals(java.lang.Object o)
private static <T> T	first(T t0, T t1)
static ColumnMetaData	fromProto(Common.ColumnMetaData proto)
int	hashCode()
static ColumnMetaData.ScalarType	scalar(int type, java.lang.String typeName, ColumnMetaData.Rep rep)	Creates a ColumnMetaData.ScalarType.
ColumnMetaData	setRep(ColumnMetaData.Rep rep)
static ColumnMetaData.StructType	struct(java.util.List<ColumnMetaData> columns)	Creates a ColumnMetaData.StructType.
Common.ColumnMetaData	toProto()

Methods inherited from class java.lang.Object

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

Field Detail

CATALOG_NAME_DESCRIPTOR

private static final com.google.protobuf.Descriptors.FieldDescriptor CATALOG_NAME_DESCRIPTOR

SCHEMA_NAME_DESCRIPTOR

private static final com.google.protobuf.Descriptors.FieldDescriptor SCHEMA_NAME_DESCRIPTOR

LABEL_DESCRIPTOR

private static final com.google.protobuf.Descriptors.FieldDescriptor LABEL_DESCRIPTOR

COLUMN_NAME_DESCRIPTOR

private static final com.google.protobuf.Descriptors.FieldDescriptor COLUMN_NAME_DESCRIPTOR

TABLE_NAME_DESCRIPTOR

private static final com.google.protobuf.Descriptors.FieldDescriptor TABLE_NAME_DESCRIPTOR

COLUMN_CLASS_NAME_DESCRIPTOR

private static final com.google.protobuf.Descriptors.FieldDescriptor COLUMN_CLASS_NAME_DESCRIPTOR

ordinal

public final int ordinal

autoIncrement

public final boolean autoIncrement

caseSensitive

public final boolean caseSensitive

searchable

public final boolean searchable

currency

public final boolean currency

nullable

public final int nullable

signed

public final boolean signed

displaySize

public final int displaySize

label

public final java.lang.String label

columnName

public final java.lang.String columnName

schemaName

public final java.lang.String schemaName

precision

public final int precision

scale

public final int scale

tableName

public final java.lang.String tableName

catalogName

public final java.lang.String catalogName

readOnly

public final boolean readOnly

writable

public final boolean writable

definitelyWritable

public final boolean definitelyWritable

columnClassName

public final java.lang.String columnClassName

type

public final ColumnMetaData.AvaticaType type

Constructor Detail

ColumnMetaData

public ColumnMetaData(int ordinal,
                      boolean autoIncrement,
                      boolean caseSensitive,
                      boolean searchable,
                      boolean currency,
                      int nullable,
                      boolean signed,
                      int displaySize,
                      java.lang.String label,
                      java.lang.String columnName,
                      java.lang.String schemaName,
                      int precision,
                      int scale,
                      java.lang.String tableName,
                      java.lang.String catalogName,
                      ColumnMetaData.AvaticaType type,
                      boolean readOnly,
                      boolean writable,
                      boolean definitelyWritable,
                      java.lang.String columnClassName)

Method Detail

toProto

public Common.ColumnMetaData toProto()

fromProto

public static ColumnMetaData fromProto(Common.ColumnMetaData proto)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

first

private static <T> T first(T t0,
                           T t1)

scalar

public static ColumnMetaData.ScalarType scalar(int type,
                                               java.lang.String typeName,
                                               ColumnMetaData.Rep rep)

Creates a ColumnMetaData.ScalarType.

struct

public static ColumnMetaData.StructType struct(java.util.List<ColumnMetaData> columns)

Creates a ColumnMetaData.StructType.

array

public static ColumnMetaData.ArrayType array(ColumnMetaData.AvaticaType componentType,
                                             java.lang.String typeName,
                                             ColumnMetaData.Rep rep)

Creates an ColumnMetaData.ArrayType.

dummy

public static ColumnMetaData dummy(ColumnMetaData.AvaticaType type,
                                   boolean nullable)

Creates a ColumnMetaData for result sets that are not based on a struct but need to have a single 'field' for purposes of ResultSetMetaData.

setRep

public ColumnMetaData setRep(ColumnMetaData.Rep rep)