Package org.opencastproject.assetmanager.api.query

Class PropertySchema

java.lang.Object

org.opencastproject.assetmanager.api.query.PropertySchema

public abstract class PropertySchema
extends Object

The schema class helps to build type safe and easy to use property schemas. It makes code using properties more readable and reliable.

Field Summary

Fields

Modifier and Type	Field	Description
protected String	namespace
protected AQueryBuilder	q

Constructor Summary

Constructors

Constructor	Description
PropertySchema(AQueryBuilder q, String namespace)	Create a new property schema.

Method Summary

Modifier and Type	Method	Description
Target	allProperties()	Get a target to select all properties of the schema's namespace.
protected PropertyField<Boolean>	booleanProp(String name)	Create a property field for Booleans.
protected PropertyField<Date>	dateProp(String name)	Create a property field for Dates.
Predicate	hasPropertiesOfNamespace()	Get a predicate that matches if a property of the schema's namespace exists.
protected PropertyField<Long>	longProp(String name)	Create a property field for Longs.
String	namespace()	Get the namespace of the schema.
protected <A> PropertyField<A>	prop(Value.ValueType<A> ev, String name)	Generic property field constructor.
protected PropertyField<String>	stringProp(String name)	Create a property field for Strings.
protected PropertyField<Version>	versionProp(String name)	Create a property field for Versions.

Methods inherited from class java.lang.Object

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

Field Detail

q

protected final AQueryBuilder q

namespace

protected final String namespace

Constructor Detail

PropertySchema

public PropertySchema(AQueryBuilder q,
                      String namespace)

Create a new property schema.

Parameters:

q - a query builder

namespace -

Method Detail

namespace

public String namespace()

Get the namespace of the schema.

hasPropertiesOfNamespace

public Predicate hasPropertiesOfNamespace()

Get a predicate that matches if a property of the schema's namespace exists.

allProperties

public Target allProperties()

Get a target to select all properties of the schema's namespace.

prop

protected <A> PropertyField<A> prop(Value.ValueType<A> ev,
                                    String name)

Generic property field constructor.

stringProp

protected PropertyField<String> stringProp(String name)

Create a property field for Strings.

longProp

protected PropertyField<Long> longProp(String name)

Create a property field for Longs.

booleanProp

protected PropertyField<Boolean> booleanProp(String name)

Create a property field for Booleans.

dateProp

protected PropertyField<Date> dateProp(String name)

Create a property field for Dates.

versionProp

protected PropertyField<Version> versionProp(String name)

Create a property field for Versions.