kodo.query
Interface Constant

All Superinterfaces:

Value

public interface Constant

extends Value

Specialization of Value that represents a constant value in the AST. This has no additional behavior. It is returned from ExpressionFactory#newConstant(Object,Object).

Since:

3.3.3

Field Summary

static Object	TYPE_BOOLEAN
static Object	TYPE_NUMBER
static Object	TYPE_SINGLE_QUOTED_STRING
static Object	TYPE_STRING
static Object	TYPE_UNKNOWN

Method Summary

Object	getConstantType() Returns one of TYPE_BOOLEAN, TYPE_NUMBER, TYPE_SINGLE_QUOTED_STRING, TYPE_STRING, or TYPE_UNKNOWN, as appropriate.
Object	getValue() Returns the constant value that this object represents.
void	setValue(Object v) Sets the constant value that this object represents.

Methods inherited from interface kodo.query.Value

getMetaData, getType, isVariable, setImplicitType, setMetaData

Field Detail

TYPE_SINGLE_QUOTED_STRING

public static final Object TYPE_SINGLE_QUOTED_STRING

TYPE_STRING

public static final Object TYPE_STRING

TYPE_BOOLEAN

public static final Object TYPE_BOOLEAN

TYPE_NUMBER

public static final Object TYPE_NUMBER

TYPE_UNKNOWN

public static final Object TYPE_UNKNOWN

Method Detail

getConstantType

public Object getConstantType()

Returns one of TYPE_BOOLEAN, TYPE_NUMBER, TYPE_SINGLE_QUOTED_STRING, TYPE_STRING, or TYPE_UNKNOWN, as appropriate.

getValue

public Object getValue()

Returns the constant value that this object represents.

setValue

public void setValue(Object v)

Sets the constant value that this object represents. Care should be taken to ensure that this is set to a type compatible with this constant's type.