com.asakusafw.dmdl.directio.hive.common

Class HiveFieldTrait

java.lang.Object

com.asakusafw.dmdl.directio.hive.common.BaseTrait<HiveFieldTrait>

com.asakusafw.dmdl.directio.hive.common.HiveFieldTrait

All Implemented Interfaces:

Element, Trait<HiveFieldTrait>

public class HiveFieldTrait
extends BaseTrait<HiveFieldTrait>

Attributes for Hive column field.

Since:

0.7.0

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HiveFieldTrait.TypeKind The special type kind.

Constructor Summary

Constructors

Constructor and Description
HiveFieldTrait()

Method Summary

Modifier and Type	Method and Description
static HiveFieldTrait	get(PropertyDeclaration declaration) Returns the HiveFieldTrait for the target property declaration.
String	getColumnName() Returns the explicit column name.
static String	getColumnName(PropertyDeclaration property) Returns the explicit/inferred column name.
int	getDecimalPrecision() Returns the explicit decimal precision.
int	getDecimalScale() Returns the explicit decimal scale.
static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo	getNaturalTypeInfo(PropertyDeclaration property) Returns the natural type information for the property.
int	getStringLength() Returns the explicit char/varchar length.
static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo	getTypeInfo(PropertyDeclaration property) Returns the type information for the property.
HiveFieldTrait.TypeKind	getTypeKind() Returns the type kind.
boolean	isColumnPresent() Returns whether this field is a table column or not.
void	setCharTypeInfo(int length) Sets the char type info.
void	setColumnName(String name) Sets the explicit column name.
void	setColumnPresent(boolean present) Sets whether this field is a table column or not.
void	setDecimalTypeInfo(int precision, int scale) Sets the decimal type info.
void	setStringTypeInfo() Sets the string type info.
void	setTimestampTypeInfo() Sets the timestamp type info.
void	setVarcharTypeInfo(int length) Sets the varchar type info.

Methods inherited from class com.asakusafw.dmdl.directio.hive.common.BaseTrait

getOriginalAst, setOriginalAst

Methods inherited from class java.lang.Object

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

Constructor Detail

HiveFieldTrait

public HiveFieldTrait()

Method Detail

isColumnPresent

public boolean isColumnPresent()

Returns whether this field is a table column or not.

Returns:

true if this field is a column

setColumnPresent

public void setColumnPresent(boolean present)

Sets whether this field is a table column or not.

Parameters:

present - true to make this field be column, false otherwise

getColumnName

public String getColumnName()

Returns the explicit column name.

Returns:

the explicit column name

setColumnName

public void setColumnName(String name)

Sets the explicit column name.

Parameters:

name - the explicit column name

getColumnName

public static String getColumnName(PropertyDeclaration property)

Returns the explicit/inferred column name.

Parameters:

property - the target property

Returns:

the explicit/inferred column name

getTypeKind

public HiveFieldTrait.TypeKind getTypeKind()

Returns the type kind.

Returns:

the type kind

getDecimalPrecision

public int getDecimalPrecision()

Returns the explicit decimal precision.

Returns:

the explicit decimal precision

getDecimalScale

public int getDecimalScale()

Returns the explicit decimal scale.

Returns:

the explicit decimal scale

getStringLength

public int getStringLength()

Returns the explicit char/varchar length.

Returns:

the explicit char/varchar length

setTimestampTypeInfo

public void setTimestampTypeInfo()

Sets the timestamp type info.

setStringTypeInfo

public void setStringTypeInfo()

Sets the string type info.

setDecimalTypeInfo

public void setDecimalTypeInfo(int precision,
                               int scale)

Sets the decimal type info.

Parameters:

precision - the precision

scale - the scale

setCharTypeInfo

public void setCharTypeInfo(int length)

Sets the char type info.

Parameters:

length - the character string length

setVarcharTypeInfo

public void setVarcharTypeInfo(int length)

Sets the varchar type info.

Parameters:

length - the character string length

getTypeInfo

public static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo getTypeInfo(PropertyDeclaration property)

Returns the type information for the property.

Parameters:

property - the target property

Returns:

the type information

getNaturalTypeInfo

public static org.apache.hadoop.hive.serde2.typeinfo.TypeInfo getNaturalTypeInfo(PropertyDeclaration property)

Returns the natural type information for the property.

Parameters:

property - the target property

Returns:

the natural type information

get

public static HiveFieldTrait get(PropertyDeclaration declaration)

Returns the HiveFieldTrait for the target property declaration.

Parameters:

declaration - the target declaration

Returns:

the related trait