ome.services.query

Class QueryParameterDef

java.lang.Object

ome.services.query.QueryParameterDef

Direct Known Subclasses:

CollectionQueryParameterDef

public class QueryParameterDef
extends java.lang.Object

definition of a slot into which a QueryParameter must fit. These are typically defined statically in Query subclasses and collected into Definitions which get passed to the super Query constructor.

Since:

OMERO 3.0

Author:

Josh Moore, josh.moore@gmx.de

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	name name of this parameter.
boolean	optional whether or not this QueryParameter can be omitted or its value null.
java.lang.Class	type type of this parameter.

Constructor Summary

Constructors

Constructor and Description
QueryParameterDef(java.lang.String name, java.lang.Class type, boolean optional) main constructor.

Method Summary

Modifier and Type	Method and Description
void	errorIfInvalid(QueryParameter parameter) validation method called by Query.checkParameters().

Methods inherited from class java.lang.Object

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

Field Detail

name

public final java.lang.String name

name of this parameter. Will be compared to all query parameters with an equal name.

type

public final java.lang.Class type

type of this parameter. Will restrict what values can be assigned to QueryParameter.value

optional

public final boolean optional

whether or not this QueryParameter can be omitted or its value null.

Constructor Detail

QueryParameterDef

public QueryParameterDef(java.lang.String name,
                         java.lang.Class type,
                         boolean optional)

main constructor. Provides all three fields, none of which can be null.

Method Detail

errorIfInvalid

public void errorIfInvalid(QueryParameter parameter)

validation method called by Query.checkParameters(). Subclasses should be very careful to call super.errorIfInvalid.

Parameters:

parameter - Parameter with a matching name to be validated.