Interface StructReader (2.51.0)

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public interface StructReader

An interface for reading the columns of a Struct or com.google.cloud.bigtable.data.v2.models.sql.ResultSet.

This provides accessors for each valid type in the form of getTypeName(). Attempting to call these methods for a column of another type will result in an IllegalStateException. Each method has an overload accepting both int column index and String column Name. Attempting to call an index-based method with a non-existent index will result in an IndexOutOfBoundsException. Attempting to call a columnName based getter with a column name that does not appear exactly once in the set of fields will result in an IllegalArgumentException. Attempting to access a column with a null value will result in a NullPointerException; #isNull(int) & #isNull(String) can be used to check for null values.

Methods

<ElemType>getList(int columnIndex, SqlType.Array<ElemType> arrayType)

public abstract List<ElemType> <ElemType>getList(int columnIndex, SqlType.Array<ElemType> arrayType)

Parameters
Name	Description
columnIndex	int index of the column
arrayType	Array<ElemType>

Returns
Type	Description
List<ElemType>	List type value of a non-NULL column

<ElemType>getList(String columnName, SqlType.Array<ElemType> arrayType)

public abstract List<ElemType> <ElemType>getList(String columnName, SqlType.Array<ElemType> arrayType)

Parameters
Name	Description
columnName	String name of the column
arrayType	Array<ElemType>

Returns
Type	Description
List<ElemType>	List type value of a non-NULL column

<K,V>getMap(int columnIndex, SqlType.Map<K,V> mapType)

public abstract Map<K,V> <K,V>getMap(int columnIndex, SqlType.Map<K,V> mapType)

Parameters
Name	Description
columnIndex	int index of the column
mapType	Map<K,V>

Returns
Type	Description
Map<K,V>	Map type value of a non-NULL column

<K,V>getMap(String columnName, SqlType.Map<K,V> mapType)

public abstract Map<K,V> <K,V>getMap(String columnName, SqlType.Map<K,V> mapType)

Parameters
Name	Description
columnName	String name of the column
mapType	Map<K,V>

Returns
Type	Description
Map<K,V>	Map type value of a non-NULL column

getBoolean(int columnIndex)

public abstract boolean getBoolean(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
boolean	boolean type value of a non-NULL column

getBoolean(String columnName)

public abstract boolean getBoolean(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
boolean	boolean type value of a non-NULL column

getBytes(int columnIndex)

public abstract ByteString getBytes(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
ByteString	ByteString type value of a non-NULL column

getBytes(String columnName)

public abstract ByteString getBytes(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
ByteString	ByteString type value of a non-NULL column

getDate(int columnIndex)

public abstract Date getDate(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
com.google.cloud.Date	Date type value of a non-NULL column

getDate(String columnName)

public abstract Date getDate(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
com.google.cloud.Date	Date type value of a non-NULL column

getDouble(int columnIndex)

public abstract double getDouble(int columnIndex)

Getter for FLOAT_64 type Sql data

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
double	double type value of a non-NULL column

getDouble(String columnName)

public abstract double getDouble(String columnName)

Getter for FLOAT_64 type Sql data

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
double	double type value of a non-NULL column

getFloat(int columnIndex)

public abstract float getFloat(int columnIndex)

Getter for FLOAT_32 type Sql data

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
float	float type value of a non-NULL column

getFloat(String columnName)

public abstract float getFloat(String columnName)

Getter for FLOAT_32 type Sql data

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
float	float type value of a non-NULL column

getLong(int columnIndex)

public abstract long getLong(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
long	long type value of a non-NULL column

getLong(String columnName)

public abstract long getLong(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
long	long type value of a non-NULL column

getString(int columnIndex)

public abstract String getString(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
String	String type value of a non-NULL column

getString(String columnName)

public abstract String getString(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
String	String type value of a non-NULL column

getStruct(int columnIndex)

public abstract Struct getStruct(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
Struct	com.google.cloud.bigtable.data.v2.models.sql.Struct type value of a non- NULL column

getStruct(String columnName)

public abstract Struct getStruct(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
Struct	com.google.cloud.bigtable.data.v2.models.sql.Struct type value of a non- NULL column

getTimestamp(int columnIndex)

public abstract Instant getTimestamp(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
Instant	Instant type value of a non-NULL column

getTimestamp(String columnName)

public abstract Instant getTimestamp(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
Instant	Instant type value of a non-NULL column

isNull(int columnIndex)

public abstract boolean isNull(int columnIndex)

Parameter
Name	Description
columnIndex	int index of the column

Returns
Type	Description
boolean	true if the column contains a NULL value

isNull(String columnName)

public abstract boolean isNull(String columnName)

Parameter
Name	Description
columnName	String name of the column

Returns
Type	Description
boolean	true if the column contains a NULL value