com.asakusafw.dmdl.spi

Interface AttributeDriver

All Known Implementing Classes:

AutoProjectionDriver, ColumnDriver, CsvFieldDriver, CsvFieldDriver, CsvFileNameDriver, CsvFileNameDriver, CsvFormatDriver, CsvIgnoreDriver, CsvIgnoreDriver, CsvLineNumberDriver, CsvLineNumberDriver, CsvRecordNumberDriver, CsvRecordNumberDriver, CsvSupportDriver, CsvTextDriver, HiveCharDriver, HiveDecimalDriver, HiveFieldDriver, HiveIgnoreDriver, HiveStringDriver, HiveTimestampDriver, HiveVarcharDriver, JdbcColumnDriver, JdbcTableDriver, JsonFileNameDriver, JsonFormatDriver, JsonIgnoreDriver, JsonLineNumberDriver, JsonPropertyDriver, JsonRecordNumberDriver, LineBodyDriver, LineFileNameDriver, LineFormatDriver, LineLineNumberDriver, ModelAttributeDriver, NamespaceDriver, OrcFileDriver, ParquetFileDriver, PropertyAttributeDriver, SequenceFileFormatDriver, StreamSupportDriver, TabularTextDriver, TextFieldDriver, TextFileNameDriver, TextIgnoreDriver, TextLineNumberDriver, TextRecordNumberDriver, TsvFieldDriver, TsvFileNameDriver, TsvFormatDriver, TsvIgnoreDriver

public interface AttributeDriver

Analyzes and processes attributes in form of AST.

To enhance DMDL compiler, clients can implement this and put the class name in META-INF/services/com.asakusafw.dmdl.spi.AttributeDriver.

Since:

0.2.0

Version:

0.9.2

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	AttributeDriver.Context A processing context for AttributeDriver.

Method Summary

Modifier and Type	Method and Description
String	getTargetName() Returns the qualified name of the target attribute.
void	process(AttributeDriver.Context context, Declaration declaration, AstAttribute attribute) Processes and modifies the attributed declaration.
default void	verify(AttributeDriver.Context context, Declaration declaration, AstAttribute attribute) Verifies the attributed declaration.

Method Detail

getTargetName

String getTargetName()

Returns the qualified name of the target attribute.

Returns:

the target attribute name

process

void process(AttributeDriver.Context context,
             Declaration declaration,
             AstAttribute attribute)

Processes and modifies the attributed declaration.

Parameters:

context - the current context

attribute - the attribute with the target name

declaration - the declaration with the attribute

See Also:

getTargetName()

verify

default void verify(AttributeDriver.Context context,
                    Declaration declaration,
                    AstAttribute attribute)

Verifies the attributed declaration. This will be invoked after all attributes are processed.

Parameters:

context - the current context

attribute - the attribute with the target name

declaration - the declaration with the attribute

Since:

0.7.0

See Also:

getTargetName()