Examples of Yard

org.apache.stanbol.entityhub.servicesapi.yard.Yard
The Yard represents a local cache for {@link Representation}s of the Entities and Symbols managed by a referenced site.

Referenced Sites need to provide the configuration if there representations should be cached locally. This is done by using one of the defined {@link CacheStrategy}.
The Idea is not to have one big Yard that caches all the representations, but to provide the possibility to use different caches. This means, that each {@link Site} can have its own Yard instance. Howeverseveral Sites might also use the same Yard.

The {@link YardManager} is an singleton services that manages the differentYard instances and provides an central point of access for the {@link Entityhub}and the {@link SiteManager}.

This should also allow for implementing Yards that are based on
- Indexes generated by dumps of the referred Site
- local installations of the software used by the referred site
- and so on ...
TODO: The framework need to provide a special Yard for storing {@link Symbol}and {@link EntityMapping} information. This Yard is currently referenced asEntityhub-Yard. Do we need also a special API for this Yard? One could still provide a "default" implementation that implements this interface based on a Component that provides the normal {@link Yard} service.

Side note: The name yard was chosen as name because in farming "yard" refers to a piece of enclosed land for farm animals or other agricultural purpose and the storage component of the entityhub does the same thing for Entities.
@author Rupert Westenthaler

Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        return InMemoryValueFactory.getInstance().createRepresentation(id);
    }


    @Override
    public QueryResultList<Representation> find(FieldQuery query) throws YardException, IllegalArgumentException {
        Yard yard = getCacheYard();
        if (yard == null) {
            throw new YardException(String.format("The Yard %s for this cache is currently not available", yardId));
        } else {
            return yard.find(query);
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        }
    }


    @Override
    public QueryResultList<String> findReferences(FieldQuery query) throws YardException, IllegalArgumentException {
        Yard yard = getCacheYard();
        if (yard == null) {
            throw new YardException(String.format("The Yard %s for this cache is currently not available", yardId));
        } else {
            return yard.findReferences(query);
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        }
    }


    @Override
    public QueryResultList<Representation> findRepresentation(FieldQuery query) throws YardException, IllegalArgumentException {
        Yard yard = getCacheYard();
        if (yard == null) {
            throw new YardException(String.format("The Yard %s for this cache is currently not available", yardId));
        } else {
            return yard.findRepresentation(query);
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        return yardId + " Cache";
    }


    @Override
    public FieldQueryFactory getQueryFactory() {
        Yard yard = getCacheYard();
        if (yard == null) {
            return DefaultQueryFactory.getInstance();
        } else {
            return yard.getQueryFactory();
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        }
    }


    @Override
    public Representation getRepresentation(String id) throws YardException, IllegalArgumentException {
        Yard yard = getCacheYard();
        if (yard == null) {
            throw new YardException(String.format("The Yard %s for this cache is currently not available", yardId));
        } else {
            return yard.getRepresentation(id);
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        }
    }


    @Override
    public ValueFactory getValueFactory() {
        Yard yard = getCacheYard();
        if (yard == null) {
            return InMemoryValueFactory.getInstance();
        } else {
            return yard.getValueFactory();
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        }
    }


    @Override
    public boolean isRepresentation(String id) throws YardException, IllegalArgumentException {
        Yard yard = getCacheYard();
        if (yard == null) {
            throw new YardException(String.format("The Yard %s for this cache is currently not available", yardId));
        } else {
            return yard.isRepresentation(id);
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        }
    }


    @Override
    public void remove(String id) throws IllegalArgumentException, YardException {
        Yard yard = getCacheYard();
        if (yard == null) {
            throw new YardException(String.format("The Yard %s for this cache is currently not available", yardId));
        } else {
            yard.remove(id);
        }
    }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        return additionalMapper == null ? null : additionalMapper.clone();
    }


    @Override
    public void setAdditionalMappings(FieldMapper fieldMapper) throws YardException {
        Yard yard = getCacheYard();
        if (yard == null) {
            throw new YardException(String.format("The Yard %s for this cache is currently not available", yardId));
        } else {
            setAdditionalMappings(yard, fieldMapper);
        }

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Examples of org.apache.stanbol.entityhub.servicesapi.yard.Yard

        assertFalse("The Name of the Yard MUST NOT be an empty String", getYard().getName().isEmpty());
    }


    @Test
    public void testDefaultCreate() throws YardException {
        Yard yard = getYard();
        Representation test = yard.create();
        assertNotNull(test);
        Representation test2 = yard.create();
        assertNotNull(test2);
        assertNotSame(test, test2);
        assertFalse("Two Representation created with create() MUST NOT be equals", test.equals(test2));
    }

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