freemarker.template.TemplateCollectionModelEx Maven / Gradle / Ivy
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Google App Engine compliant variation of FreeMarker.
FreeMarker is a "template engine"; a generic tool to generate text output based on templates.
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 freemarker.template;
import java.util.Collection;
/**
* "collection" template language data type: Adds size/emptiness querybility to
* {@link TemplateCollectionModel}. The added extra operations are provided by all Java {@link Collection}-s, and this
* interface was added to make that accessible for templates too.
*
* @since 2.3.22
*/
public interface TemplateCollectionModelEx extends TemplateCollectionModel {
/**
* Returns the number items in this collection, or {@link Integer#MAX_VALUE}, if there are more than
* {@link Integer#MAX_VALUE} items.
*/
int size() throws TemplateModelException;
/**
* Returns if the collection contains any elements. This differs from {@code size() != 0} only in that the exact
* number of items need not be calculated.
*/
boolean isEmpty() throws TemplateModelException;
}