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Interface ActivityRecordSet<RecordType extends ActivityRecord>

Type Parameters:

RecordType - The type of ActivityRecord contained within this set.

All Known Subinterfaces:

ConnectionRecordSet

All Known Implementing Classes:

SimpleActivityRecordSet, SimpleConnectionRecordSet

public interface ActivityRecordSet<RecordType extends ActivityRecord>

A set of all available records related to a type of activity which has a defined start and end time, such as a user being logged in or connected, or a subset of those records.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	ActivityRecordSet.SortableProperty All properties of activity records which can be used as sorting criteria.

Method Summary

Modifier and Type	Method and Description
Collection<RecordType>	asCollection() Returns all records within this set as a standard Collection.
ActivityRecordSet<RecordType>	contains(String value) Returns the subset of records which contain the given value.
ActivityRecordSet<RecordType>	limit(int limit) Returns the subset of records containing only the first limit records.
ActivityRecordSet<RecordType>	sort(ActivityRecordSet.SortableProperty property, boolean desc) Returns a ActivityRecordSet containing identically the records within this set, sorted according to the specified criteria.

Method Detail

asCollection

Collection<RecordType> asCollection()
                             throws org.apache.guacamole.GuacamoleException

Returns all records within this set as a standard Collection.

Returns:

A collection containing all records within this set.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while retrieving the records within this set.

contains

ActivityRecordSet<RecordType> contains(String value)
                                throws org.apache.guacamole.GuacamoleException

Returns the subset of records which contain the given value. The properties and semantics involved with determining whether a particular record "contains" the given value is implementation dependent. This function may affect the contents of the current ActivityRecordSet. The contents of the current ActivityRecordSet should NOT be relied upon after this function is called.

Parameters:

value - The value which all records within the resulting subset should contain.

Returns:

The subset of records which contain the specified value.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while restricting the current subset.

limit

ActivityRecordSet<RecordType> limit(int limit)
                             throws org.apache.guacamole.GuacamoleException

Returns the subset of records containing only the first limit records. If the subset has fewer than limit records, then this function has no effect. This function may also affect the contents of the current ActivityRecordSet. The contents of the current ActivityRecordSet should NOT be relied upon after this function is called.

Parameters:

limit - The maximum number of records that the new subset should contain.

Returns:

The subset of records that containing only the first limit records.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while limiting the current subset.

sort

ActivityRecordSet<RecordType> sort(ActivityRecordSet.SortableProperty property,
                                   boolean desc)
                            throws org.apache.guacamole.GuacamoleException

Returns a ActivityRecordSet containing identically the records within this set, sorted according to the specified criteria. The sort operation performed is guaranteed to be stable with respect to any past call to sort(). This function may also affect the contents of the current ActivityRecordSet. The contents of the current ActivityRecordSet should NOT be relied upon after this function is called.

Parameters:

property - The property by which the records within the resulting set should be sorted.

desc - Whether the records should be sorted according to the specified property in descending order. If false, records will be sorted according to the specified property in ascending order.

Returns:

The ActivityRecordSet, sorted according to the specified criteria.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while sorting the current subset, or if the given property is not supported by the implementation.