Expression chain for checking values. More...
#include <ValueCheck.hpp>
Public Member Functions | |
| ValueCheck () | |
| ValueCheck (ValueCheckBase *check) | |
| ValueCheck & | operator= (ValueCheckBase *check) |
| ValueCheck (const ValueCheck &ref) | |
| ValueCheck & | operator= (const ValueCheck &ref) |
| virtual | ~ValueCheck () |
| virtual bool | isValid (const BLOCXX_NAMESPACE::String &value) const |
| virtual BLOCXX_NAMESPACE::String | explain (const BLOCXX_NAMESPACE::String &value) const |
| ValueCheck & | And (const ValueCheck &ref) |
| ValueCheck & | And (ValueCheckBase *check) |
| ValueCheck & | Or (const ValueCheck &ref) |
| ValueCheck & | Or (ValueCheckBase *check) |
| ValueCheck & | Not () |
 Public Member Functions inherited from limal::ValueCheckBase | |
| virtual | ~ValueCheckBase () |
Private Types | |
| enum | ECheckOp { E_AND, E_OR } |
Private Member Functions | |
| ValueCheck (const ValueCheck &ref, ECheckOp op) | |
| void | incRCnt (ValueCheckBase *ptr) |
| void | delRCnt (ValueCheckBase *ptr) |
Private Attributes | |
| ECheckOp | m_cop |
| bool | m_neg |
| ValueCheckBase * | m_self |
| BLOCXX_NAMESPACE::List < ValueCheck > | m_list |
Additional Inherited Members | |
| Protected Member Functions inherited from limal::ValueCheckBase | |
| ValueCheckBase () | |
Detailed Description
Expression chain for checking values.
The ValueCheck class allows to construct a simple expression. It contains one or more single checks derived from ValueCheckBase or also sub-expressions, that are combined with And, Or and Not operators.
The check can be evaluated for a value using the isValid() method, showed as string with the explain() method and of course stored in a variable and used to check values multiple times.
- See Also
- ValueRegExCheck, ValueIntCheck classes.
Member Enumeration Documentation
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private |
Constructor & Destructor Documentation
| limal::ValueCheck::ValueCheck | ( | ) |
Default constructor. Since it does not contain any check, the isValid() and and explain() will throw an error until a check is assigned using the operator=().
| limal::ValueCheck::ValueCheck | ( | ValueCheckBase * | check | ) |
Single check assignment constructor.
- Parameters
-
check Pointer to a single check.
| limal::ValueCheck::ValueCheck | ( | const ValueCheck & | ref | ) |
Check expression copy constructor.
- Parameters
-
ref Reference to a check expression.
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virtual |
Destructor.
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private |
Private constructor used to add the value check reference to the current expression list.
- Parameters
-
ref Reference to a value check. op Relation to the current or last expression in the list.
Member Function Documentation
| ValueCheck& limal::ValueCheck::And | ( | const ValueCheck & | ref | ) |
Append a sub-expression to the list of checks using the E_OR relationship operator.
- Parameters
-
ref Reference to the sub-expression.
- Returns
- Reference to the current object.
| ValueCheck& limal::ValueCheck::And | ( | ValueCheckBase * | check | ) |
Append a single check to the list of checks using the E_AND relationship operator.
- Parameters
-
check Pointer to a single value check.
- Returns
- Reference to the current object.
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private |
Decrement the reference counter of the check and delete the object if needed.
- Parameters
-
ptr Pointer to a value check.
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virtual |
Returns a string explaining / showing the checks that will be done for the specified string value parameter.
- Parameters
-
value A string value.
- Returns
- A string showing the check (list).
Implements limal::ValueCheckBase.
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private |
Increment the reference counter of the check.
- Parameters
-
ptr Pointer to a value check.
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virtual |
Evaluates a the specified string value parameter to a boolean using the single checks and sub-expressions it contains.
- Parameters
-
value The string value to evaluate.
- Returns
- The boolean result of the check.
Implements limal::ValueCheckBase.
| ValueCheck& limal::ValueCheck::Not | ( | ) |
Negate the result of the current expression.
- Note
- There is no difference between: andValueCheck(...).Not().And(...)Both are negating the complete expression like: Not( (...) And (...) )ValueCheck(...).And(...).Not()
- Returns
- Reference to the current object.
| ValueCheck& limal::ValueCheck::operator= | ( | ValueCheckBase * | check | ) |
Single check assignment operator.
- Parameters
-
check Pointer to a single check.
- Returns
- Reference to the current object.
| ValueCheck& limal::ValueCheck::operator= | ( | const ValueCheck & | ref | ) |
Check expression assignment operator.
- Parameters
-
ref Reference to a check expression.
- Returns
- Reference to the current object.
| ValueCheck& limal::ValueCheck::Or | ( | const ValueCheck & | ref | ) |
Append a sub-expression to the list of checks using the E_OR relationship operator.
- Parameters
-
ref Reference to the sub-expression.
- Returns
- Reference to the current object.
| ValueCheck& limal::ValueCheck::Or | ( | ValueCheckBase * | check | ) |
Append a single check to the list of checks using the E_OR relationship operator.
- Parameters
-
check Pointer to a single value check.
- Returns
- Reference to the current object.
Member Data Documentation
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private |
Check relationship operator to the parent check.
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private |
List of further checks in the chain.
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private |
Whether to negate the result of the current chain.
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private |
Pointer to the current (reference counted) check.
The documentation for this class was generated from the following file:
