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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
AbstractBinding.java | - | 94.4% | 88.9% | 92.6% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.binding;
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import org.apache.hivemind.Location;
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import org.apache.hivemind.util.Defense;
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import org.apache.tapestry.BindingException;
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import org.apache.tapestry.IBinding;
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import org.apache.tapestry.coerce.ValueConverter;
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/**
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* Base class for {@link IBinding}implementations.
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*
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* @author Howard Lewis Ship
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*/
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public abstract class AbstractBinding implements IBinding |
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{ |
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/** @since 4.0 */
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private final String _description;
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/** @since 4.0 */
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private final ValueConverter _valueConverter;
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/** @since 3.0 */
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private final Location _location;
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/** @since 3.0 */
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protected AbstractBinding(String description, ValueConverter valueConverter, Location location)
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{ |
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Defense.notNull(description, "description");
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Defense.notNull(valueConverter, "valueConverter");
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_description = description; |
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_valueConverter = valueConverter; |
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_location = location; |
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} |
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public Location getLocation()
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{ |
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return _location;
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} |
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/**
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* Overridden in subclasses that are not invariant.
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*
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* @throws ReadOnlyBindingException
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* always.
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*/
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public void setObject(Object value) |
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{ |
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throw createReadOnlyBindingException(this); |
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} |
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/**
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* Default implementation: returns true.
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*
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* @since 2.0.3
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*/
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public boolean isInvariant() |
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{ |
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return true; |
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} |
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public Object getObject(Class type)
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{ |
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Defense.notNull(type, "type");
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Object raw = getObject(); |
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try
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{ |
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return _valueConverter.coerceValue(raw, type);
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} |
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catch (Exception ex)
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{ |
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String message = BindingMessages.convertObjectError(this, ex);
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throw new BindingException(message, getComponent(), _location, this, ex); |
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} |
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} |
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/**
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* Returns the component to which this binding is connected; this is currently only used when
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* building certain exceptions. This implementation returns null.
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*
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* @since 4.0
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*/
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public Object getComponent()
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{ |
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return null; |
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} |
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/** @since 3.0 */
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protected BindingException createReadOnlyBindingException(IBinding binding)
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{ |
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return new BindingException(BindingMessages.readOnlyBinding(binding), binding); |
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} |
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/** @since 4.0 */
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public String getDescription()
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{ |
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return _description;
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} |
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/** @since 4.0 */
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128 | 0 |
public ValueConverter getValueConverter()
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{ |
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return _valueConverter;
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} |
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} |
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