org.apache.tapestry5.internal.pageload.ParameterBinderImpl Maven / Gradle / Ivy
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Central module for Tapestry, containing interfaces to the Java
Servlet API and all core services and components.
// Copyright 2009 The Apache Software Foundation
//
// 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.apache.tapestry5.internal.pageload;
import org.apache.tapestry5.Binding;
import org.apache.tapestry5.internal.structure.ComponentPageElement;
/**
* Default implementation; invokes {@link org.apache.tapestry5.internal.structure.ComponentPageElement#bindParameter(String,
* org.apache.tapestry5.Binding)} or {@link org.apache.tapestry5.internal.structure.ComponentPageElement#bindMixinParameter(String,
* String, org.apache.tapestry5.Binding)}.
*/
class ParameterBinderImpl implements ParameterBinder
{
private final String mixinId;
private final String parameterName;
private final String defaultBindingPrefix;
ParameterBinderImpl(String mixinId, String parameterName, String defaultBindingPrefix)
{
this.mixinId = mixinId;
this.parameterName = parameterName;
this.defaultBindingPrefix = defaultBindingPrefix;
}
public void bind(ComponentPageElement element, Binding binding)
{
if (mixinId == null)
{
element.bindParameter(parameterName, binding);
return;
}
element.bindMixinParameter(mixinId, parameterName, binding);
}
public String getDefaultBindingPrefix(String metaDefault)
{
return defaultBindingPrefix != null ? defaultBindingPrefix : metaDefault;
}
}