com.martiansoftware.trivialpersist.helpers
Class NullFieldFilter

java.lang.Object
  com.martiansoftware.trivialpersist.helpers.NullFieldFilter

All Implemented Interfaces:

RecordFilter

public class NullFieldFilter

extends Object

implements RecordFilter

A filter that allows the developer to quickly find records in which a specific field is empty or non-empty.

Author:

mlamb

Constructor Summary

NullFieldFilter(String fieldName, boolean excludeNulls)
Creates a new NullFieldFilter for the specified field.

Method Summary

boolean

accept(Record r) Returns true iff the specified record should be included in the current table select.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NullFieldFilter

public NullFieldFilter(String fieldName,
                       boolean excludeNulls)

Creates a new NullFieldFilter for the specified field.

Parameters:

fieldName - the name of the field to filter on

excludeNulls - if true, this filter will exclude only records for which the specified field is null. if false, this filter will include only records for which the specified field is null.

Method Detail

accept

public boolean accept(Record r)

Description copied from interface: RecordFilter

Returns true iff the specified record should be included in the current table select.

Specified by:

accept in interface RecordFilter

Parameters:

r - the record to check

Returns:

true iff the specified record should be included in the current table select.

See Also:

RecordFilter.accept(Record)