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/*
 * 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 get*Factory()
 * 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 {

    /**
     * 

* {@inheritDoc} *

*

* This implementation always iterates over the instances return by the get*Factory() methods. *

*/ @Override public Iterator> 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> { private final Iterator 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(); } } }




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