omero.gateway.util

Class Pojos

java.lang.Object

omero.gateway.util.Pojos

public class Pojos
extends java.lang.Object

Utility methods for the Pojo DataObjects

Constructor Summary

Constructors

Constructor and Description
Pojos()

Method Summary

Modifier and Type	Method and Description
static java.util.Collection<java.lang.Long>	extractIds(java.util.Collection<? extends DataObject> pojos) Extract the (distinct) ids from a collection of DataObjects
static boolean	hasID(DataObject obj) Checks if a DataObject Pojo is not null and has an ID
static <T extends DataObject> java.util.Collection<T>	relativeComplement(java.util.Collection<T> coll1, java.util.Collection<T> coll2) Get the relative complement of coll1 in coll2

Methods inherited from class java.lang.Object

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

Constructor Detail

Pojos

public Pojos()

Method Detail

extractIds

public static java.util.Collection<java.lang.Long> extractIds(java.util.Collection<? extends DataObject> pojos)

Extract the (distinct) ids from a collection of DataObjects

Parameters:

pojos - The DataObjects

Returns:

The ids

relativeComplement

public static <T extends DataObject> java.util.Collection<T> relativeComplement(java.util.Collection<T> coll1,
                                                                                java.util.Collection<T> coll2)

Get the relative complement of coll1 in coll2

Parameters:

coll1 - The collection

coll2 - The other collection

Returns:

The elements of coll2 which are not part of coll1

hasID

public static boolean hasID(DataObject obj)

Checks if a DataObject Pojo is not null and has an ID

Parameters:

obj - The DataObject

Returns:

See above.