com.wewebu.expression.language
Class OwExprNullValue

java.lang.Object
  extended by com.wewebu.expression.language.OwExprValue
      extended by 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


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