com.wewebu.expression.language

Class OwExprBooleanValue

java.lang.Object

com.wewebu.expression.language.OwExprValue

com.wewebu.expression.language.OwExprBooleanValue

All Implemented Interfaces:

OwExprScope

public class OwExprBooleanValue
extends OwExprValue

The standard boolean value.

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Field Summary

Fields

Modifier and Type	Field and Description
static OwExprBooleanValue	FALSE Singleton instance of TRUE
static OwExprBooleanValue	TRUE Singleton instance of TRUE

Method Summary

Methods

Modifier and Type	Method and Description
OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprBooleanValue v1_p) Stage 2 binary operator visitor acceptance method
OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprStringValue v1_p) Stage 2 binary operator visitor acceptance method
OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprValue v2_p) Stage 1 binary operator visitor acceptance method
OwExprValue	accept(OwExprUnaryOperator unaryOperator_p) Unary operator visitor acceptance method
boolean	equals(Object obj_p)
boolean	getBoolean()
int	hashCode()
Object	toJavaObject(Class javaSuperType_p) Java class conversion method.
String	toString()
static OwExprBooleanValue	value(boolean bool_p) Singleton value instances accessor
static OwExprBooleanValue	value(Boolean bool_p)

Methods inherited from class com.wewebu.expression.language.OwExprValue

accept, accept, accept, accept, at, fromJavaValue, fromJavaValue, function, getJavaType, getValuePropeties, hasProperty, length, property

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

TRUE

public static final OwExprBooleanValue TRUE

Singleton instance of TRUE

FALSE

public static final OwExprBooleanValue FALSE

Singleton instance of TRUE

Method Detail

value

public static final OwExprBooleanValue value(boolean bool_p)

Singleton value instances accessor

Parameters:

bool_p - the wrapped boolean vale

Returns:

TRUE if bool_p==true and FALSE if bool_p==false

value

public static final OwExprBooleanValue value(Boolean bool_p)

Parameters:

bool_p -

Returns:

* @return TRUE if bool_p.booleanValue()==true and FALSE if bool_p.booleanValue()==false

accept

public OwExprValue accept(OwExprBinaryOperator binaryOperator_p,
                 OwExprValue v2_p)
                   throws OwExprEvaluationException

Description copied from class: OwExprValue

Stage 1 binary operator visitor acceptance method

Overrides:

accept in class OwExprValue

Parameters:

binaryOperator_p - binary operator visitor

v2_p - right side operator value

Returns:

the operator visit processed OwExprValue

Throws:

OwExprEvaluationException - if the operation fails for any reason (unsupported operand types , incompatible operands, unimplemented operation or operation failure at evaluation time)

accept

public OwExprValue accept(OwExprBinaryOperator binaryOperator_p,
                 OwExprBooleanValue v1_p)
                   throws OwExprEvaluationException

Description copied from class: OwExprValue

Stage 2 binary operator visitor acceptance method

Overrides:

accept in class OwExprValue

Parameters:

binaryOperator_p - binary operator visitor

v1_p - lef side operator value

Returns:

the operator visit processed OwExprValue

Throws:

OwExprEvaluationException - if the operation fails for any reason (unsupported operand types , incompatible operands, unimplemented operation or operation failure at evaluation time)

accept

public OwExprValue accept(OwExprBinaryOperator binaryOperator_p,
                 OwExprStringValue v1_p)
                   throws OwExprEvaluationException

Description copied from class: OwExprValue

Stage 2 binary operator visitor acceptance method

Overrides:

accept in class OwExprValue

Parameters:

binaryOperator_p - binary operator visitor

v1_p - lef side operator value

Returns:

the operator visit processed OwExprValue

Throws:

OwExprEvaluationException - if the operation fails for any reason (unsupported operand types , incompatible operands, unimplemented operation or operation failure at evaluation time)

accept

public OwExprValue accept(OwExprUnaryOperator unaryOperator_p)
                   throws OwExprEvaluationException

Description copied from class: OwExprValue

Unary operator visitor acceptance method

Overrides:

accept in class OwExprValue

Parameters:

unaryOperator_p - binary operator visitor

Returns:

the operator visit processed OwExprValue

Throws:

OwExprEvaluationException - if the operation fails for any reason (unsupported operand types , incompatible operands, unimplemented operation or operation failure at evaluation time)

getBoolean

public boolean getBoolean()

Returns:

the wrapped boolean value

equals

public boolean equals(Object obj_p)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

toJavaObject

public Object toJavaObject(Class javaSuperType_p)
                    throws OwExprEvaluationException

Description copied from class: OwExprValue

Java class conversion method.

Specified by:

toJavaObject in class OwExprValue

Parameters:

javaSuperType_p - the requested java super type The returned type should be a subclass of this type. This is necessary for values having more than one possible java peers such as OwExprNumericValue's Integer and Double support.

Returns:

the java class peer of this value's expression language type

Throws:

OwExprEvaluationException