RowPredicate (Apache Jackrabbit 2.21.26-beta API)

java.lang.Object
- org.apache.jackrabbit.commons.predicate.RowPredicate

All Implemented Interfaces:

Predicate
```
public class RowPredicate
extends Object
implements Predicate
```
Predicate for checking whether a given object is a Row and optionally whether it contains a given selector. Subclasses can extend this class to provide more complex checking of the row or the selected node.

Since:

Apache Jackrabbit 2.2

Field Summary
- Fields inherited from interface org.apache.jackrabbit.commons.predicate.Predicate
  FALSE, TRUE

Constructor Summary

Constructors
Constructor	Description
`RowPredicate()`	Creates a row predicate.
`RowPredicate(String selectorName)`	Creates a row predicate that checks the existence of the given selector (if given).

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`evaluate(Object object)`	Checks whether the given object is a `Row` and calls the protected `evaluate(Row)` method to evaluate the row.
`protected boolean`	`evaluate(Node node)`	Evaluates the given node.
`protected boolean`	`evaluate(Row row)`	Evaluates the given row.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RowPredicate
```
public RowPredicate(String selectorName)
```
    Creates a row predicate that checks the existence of the given selector (if given).
    
    Parameters:
    
    selectorName - selector name, or null
  - RowPredicate
```
public RowPredicate()
```
    Creates a row predicate.
- Method Detail
  - evaluate
```
public boolean evaluate(Object object)
```
    Checks whether the given object is a Row and calls the protected evaluate(Row) method to evaluate the row.
    
    Specified by:
    
    evaluate in interface Predicate
    
    Parameters:
    
    object - some object
    
    Returns:
    
    predicate result
  - evaluate
```
protected boolean evaluate(Row row)
                    throws RepositoryException
```
    Evaluates the given row. If a selector name is specified, then the corresponding node in this row is evaluated by calling the protected evaluate(Node) method.
    
    Throws:
    
    RepositoryException
  - evaluate
```
protected boolean evaluate(Node node)
                    throws RepositoryException
```
    Evaluates the given node. The default implementation always returns true.
    
    Throws:
    
    RepositoryException