Package guru.mikelue.jdut.datagrain

Class DataRow

java.lang.Object

guru.mikelue.jdut.datagrain.DataRow

public class DataRow
extends Object

Represents the data of a row.

See Also:

for detail information to set-up a row of data

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	DataRow.Builder	Used with DataRow.build(Consumer<DataRow.Builder>).

Method Summary

Modifier and Type	Method	Description
static DataRow	build(Consumer<DataRow.Builder> builderConsumer)	Builds row by Consumer of DataRow.Builder.
static DataRow	build(Consumer<DataRow.Builder> builderConsumer, DataRow existingRow)	Builds row by Consumer of DataRow.Builder and existing row.
protected DataRow	clone()
boolean	equals(Object obj)	Compares the table schema and data.
<T> T	getAttribute(String name)	Gets attribute of this row.
List<String>	getColumns()	Gets name of columns.
<T> T	getData(String columnName)	Gets the data by column name.
<T> DataField<T>	getDataField(String columnName)	Gets the field by column name.
SchemaTable	getTable()	Gets the table schema.
boolean	hasAttribute(String name)	Checks whether or not a attribute is existing.
int	hashCode()	Hashes the table schema and data.
boolean	isValidated()	Whether or not this row is validated with schema of table.
void	putAttribute(String name, Object value)	Puts a attribute.
void	validate()	Validates the data of row with schema information from getTable().

Methods inherited from class java.lang.Object

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

Method Detail

build

public static DataRow build(Consumer<DataRow.Builder> builderConsumer)

Builds row by Consumer of DataRow.Builder.

Parameters:

builderConsumer - The consumer to build row

Returns:

the built data of row

build

public static DataRow build(Consumer<DataRow.Builder> builderConsumer,
                            DataRow existingRow)

Builds row by Consumer of DataRow.Builder and existing row.

Parameters:

builderConsumer - The consumer to build row

existingRow - The row to be modified

Returns:

the built data of row

getTable

public SchemaTable getTable()

Gets the table schema.

Returns:

table schema

getColumns

public List<String> getColumns()

Gets name of columns.

Returns:

The name of columns

getDataField

public <T> DataField<T> getDataField(String columnName)

Gets the field by column name.

Type Parameters:

T - The type of field

Parameters:

columnName - The name of column

Returns:

The field with the column name

Throws:

IllegalArgumentException - If the is no such field found with the column name

See Also:

getData(java.lang.String)

getData

public <T> T getData(String columnName)

Gets the data by column name.

Type Parameters:

T - The type of data

Parameters:

columnName - The name of column

Returns:

The field with the column name

Throws:

IllegalArgumentException - If the is no such field found with the column name

See Also:

getDataField(java.lang.String)

validate

public void validate()
              throws DataRowException

Validates the data of row with schema information from getTable().

Throws:

DataRowException - The exception if the validation is failed

See Also:

isValidated()

isValidated

public boolean isValidated()

Whether or not this row is validated with schema of table.

Returns:

true if validated

See Also:

validate()

getAttribute

public <T> T getAttribute(String name)

Gets attribute of this row.

Type Parameters:

T - The expected type of result

Parameters:

name - The name of attribute

Returns:

null if attribute is not existing

See Also:

hasAttribute(java.lang.String), putAttribute(java.lang.String, java.lang.Object)

hasAttribute

public boolean hasAttribute(String name)

Checks whether or not a attribute is existing.

Parameters:

name - The name of attribute

Returns:

true if the attribute is existing

See Also:

getAttribute(java.lang.String), putAttribute(java.lang.String, java.lang.Object)

putAttribute

public void putAttribute(String name,
                         Object value)

Puts a attribute.

Parameters:

name - The name of attribute

value - the value of attribute

See Also:

getAttribute(java.lang.String), hasAttribute(java.lang.String)

clone

protected DataRow clone()

Overrides:

clone in class Object

hashCode

public int hashCode()

Hashes the table schema and data.

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Compares the table schema and data.

Overrides:

equals in class Object