com.wewebu.expression.language
Class OwExprNullValue

java.lang.Object
  com.wewebu.expression.language.OwExprValue
      com.wewebu.expression.language.OwExprNullValue

All Implemented Interfaces:

OwExprScope

public final class OwExprNullValue
extends OwExprValue

Null value class.

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Field Summary

static OwExprNullValue

INSTANCE

Method Summary

OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprBooleanValue v1_p) Stage 2 binary operator visitor acceptance method
OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprDateValue v1_p) Stage 2 binary operator visitor acceptance method
OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprNumericValue v1_p) Stage 2 binary operator visitor acceptance method
OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprScopeValue 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, OwExprTimeValue v1_p) Stage 2 binary operator visitor acceptance method
OwExprValue	accept(OwExprBinaryOperator binaryOperator_p, OwExprValue v2_p) Stage 1 binary operator visitor acceptance method
boolean	equals(Object obj_p)
int	hashCode()
Object	toJavaObject(Class javaSuperType_p) Java class conversion method.
String	toString()

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

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

INSTANCE

public static final OwExprNullValue INSTANCE

Method Detail

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,
                          OwExprScopeValue 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(OwExprBinaryOperator binaryOperator_p,
                          OwExprNumericValue 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,
                          OwExprTimeValue 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,
                          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,
                          OwExprDateValue 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)

equals

public boolean equals(Object obj_p)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode 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 -

Returns:

always null

Throws:

OwExprEvaluationException

toString

public String toString()

Overrides:

toString in class Object