| Fully Qualified Name: | Zend\Db\Sql\Predicate\IsNull |
| Extends: | AbstractExpression |
| Implements: | PredicateInterface |
| Name | Description | Defined By |
|---|---|---|
| __construct() | Constructor | IsNull |
| getExpressionData() | Get parts for where statement | IsNull |
| getIdentifier() | Get identifier of comparison | IsNull |
| getSpecification() | Get specification string to use in forming SQL predicate | IsNull |
| setIdentifier() | Set identifier for comparison | IsNull |
| setSpecification() | Set specification string to use in forming SQL predicate | IsNull |
Constructor
| Parameter Name | Type | Description |
|---|---|---|
| $identifier | string |
Returns:
Get parts for where statement
Returns: array
Get identifier of comparison
Returns: null|string
Get specification string to use in forming SQL predicate
Returns: string
Set identifier for comparison
| Parameter Name | Type | Description |
|---|---|---|
| $identifier | string |
Returns: self Provides a fluent interface
Set specification string to use in forming SQL predicate
| Parameter Name | Type | Description |
|---|---|---|
| $specification | string |
Returns: self Provides a fluent interface