Package guru.mikelue.jdut.datagrain

Class SchemaColumn

java.lang.Object

guru.mikelue.jdut.datagrain.SchemaColumn

public class SchemaColumn
extends Object

The definition of column of a table.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	SchemaColumn.Builder	This object is used with Consumer by build(java.util.function.Consumer<guru.mikelue.jdut.datagrain.SchemaColumn.Builder>).

Method Summary

Modifier and Type	Method	Description
static SchemaColumn	build(Consumer<SchemaColumn.Builder> builderConsumer)	Builds a new column.
protected SchemaColumn	clone()
boolean	equals(Object obj)	Only compares the name of column.
Optional<Boolean>	getAutoIncremental()	Checks whether or not this column is auto-incremental.
Optional<String>	getDefaultValue()	Gets value of default data.
boolean	getHasDefaultValue()	Whether or not this column has default value.
Optional<JDBCType>	getJdbcType()	Gets the value(optional) of sql type.
String	getName()	Gets name of column
Optional<Boolean>	getNullable()	Whether or not this column is nullable.
int	hashCode()	Hashed code by name of column.

Methods inherited from class java.lang.Object

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

Method Detail

build

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

Builds a new column.

Parameters:

builderConsumer - The editor for column

Returns:

The new definition of column

getName

public String getName()

Gets name of column

Returns:

The name of column

getJdbcType

public Optional<JDBCType> getJdbcType()

Gets the value(optional) of sql type.

Returns:

The value of sql type

See Also:

getColumns.getInt("DATA_TYPE")

getNullable

public Optional<Boolean> getNullable()

Whether or not this column is nullable.

Returns:

may not be initialized

See Also:

getColumns.getInt("NULLABLE")

getDefaultValue

public Optional<String> getDefaultValue()

Gets value of default data.

Returns:

The optional default value

See Also:

getColumns.getString("COLUMN_DEF")

getAutoIncremental

public Optional<Boolean> getAutoIncremental()

Checks whether or not this column is auto-incremental.

Returns:

The flag may be unknown

getHasDefaultValue

public boolean getHasDefaultValue()

Whether or not this column has default value.

Returns:

may not be initialized

See Also:

getColumns.getString("COLUMN_DEF")

clone

protected SchemaColumn clone()

Overrides:

clone in class Object

hashCode

public int hashCode()

Hashed code by name of column.

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Only compares the name of column.

Overrides:

equals in class Object