| java.lang.Object
 org.mmbase.storage.search.implementation.BasicStepField
All known Subclasses: org.mmbase.storage.search.implementation.BasicAggregatedField,
| BasicStepField | | public class BasicStepField implements StepField(Code) | | Basic implementation.
The field alias is not set on default.
author:
Rob van Maris
version:
$Id: BasicStepField.java,v 1.27 2007/08/08 09:38:28 michiel Exp $
since:
MMBase-1.7 |
| BasicStepField | | public BasicStepField(Step step, CoreField field)(Code) | | Constructor.
Parameters:
step - The associated step.
Parameters:
field - The associated field.
throws:
IllegalArgumentException - when an invalid argument is supplied. |
| compareSteps | | static boolean compareSteps(Step step1, Step step2)(Code) | | Utility method, compares steps by their alias or table name.
Steps are considered equal if their aliases are equal.
When their aliases are null, the steps are considered
equal if their tablenames are equal as well.
This can be used to verify that both steps refer to the same step
in a SearchQuery object.
Note that this differs from the equality defined by their
org.mmbase.storage.search.Step.equals equals() method.
Parameters:
step1 - The first step.
Parameters:
step2 - The second step. true when the steps are considered equal,false otherwise. |
| equalFieldValues | | static boolean equalFieldValues(Object value1, Object value2)(Code) | | Compares two field values for equality.
Numerical fields are compared based on their numerical value, as they
may be of different type.
Parameters:
value1 - The first value, either a Stringor a Number
Parameters:
value2 - The second value, either a Stringor a Number True if both values represent the same string or numerical value. |
| getField | | public CoreField getField()(Code) | | Gets the associated field.
The field. |
| getFieldName | | public static String getFieldName(StepField field)(Code) | | Returns the field's fieldname, possibly extended with the step's name if known.
May return null or partial fieldnames if not all data is available (for use in debugging).
Parameters:
field - the fieldname whose name to return |
| getType | | public int getType()(Code) | | |
| hashCode | | public int hashCode()(Code) | | |
| testValue | | static void testValue(Object value, StepField field)(Code) | | Tests if a value is acceptable for comparison with a certain field.
Parameters:
value - The value to be tested.
Parameters:
field - The non-null field.
throws:
IllegalArgumentException - when the value is not acceptablefor this field. |
|
|