/*
* ModeShape (http://www.modeshape.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.modeshape.jcr.value.basic;
import java.util.Iterator;
import org.modeshape.common.annotation.ThreadSafe;
import org.modeshape.common.util.CheckArg;
import org.modeshape.jcr.value.PropertyType;
import org.modeshape.jcr.value.ValueFactories;
import org.modeshape.jcr.value.ValueFactory;
/**
* Abstract implementation of {@link ValueFactories} that implements all the methods other than the <code>get*Factory()</code>
* methods. Subclasses can simply implement these methods and inherit the {@link #iterator()}, {@link #getValueFactory(Object)}
* and {@link #getValueFactory(PropertyType)} method implementations.
*/
@ThreadSafe
public abstract class AbstractValueFactories implements ValueFactories {
/**
* <p>
* {@inheritDoc}
* </p>
* <p>
* This implementation always iterates over the instances return by the <code>get*Factory()</code> methods.
* </p>
*/
@Override
public Iterator<ValueFactory<?>> iterator() {
return new ValueFactoryIterator();
}
@Override
public ValueFactory<?> getValueFactory( PropertyType type ) {
CheckArg.isNotNull(type, "type");
switch (type) {
case BINARY:
return getBinaryFactory();
case BOOLEAN:
return getBooleanFactory();
case DATE:
return getDateFactory();
case DECIMAL:
return getDecimalFactory();
case DOUBLE:
return getDoubleFactory();
case LONG:
return getLongFactory();
case NAME:
return getNameFactory();
case PATH:
return getPathFactory();
case REFERENCE:
return getReferenceFactory();
case WEAKREFERENCE:
return getWeakReferenceFactory();
case SIMPLEREFERENCE:
return getSimpleReferenceFactory();
case STRING:
return getStringFactory();
case URI:
return getUriFactory();
case OBJECT:
return getObjectFactory();
}
return getObjectFactory();
}
@Override
public ValueFactory<?> getValueFactory( Object prototype ) {
CheckArg.isNotNull(prototype, "prototype");
PropertyType inferredType = PropertyType.discoverType(prototype);
assert inferredType != null;
return getValueFactory(inferredType);
}
protected class ValueFactoryIterator implements Iterator<ValueFactory<?>> {
private final Iterator<PropertyType> propertyTypeIter = PropertyType.iterator();
protected ValueFactoryIterator() {
}
@Override
public boolean hasNext() {
return propertyTypeIter.hasNext();
}
@Override
public ValueFactory<?> next() {
PropertyType nextType = propertyTypeIter.next();
return getValueFactory(nextType);
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}
}