freemarker.core.MixedContent Maven / Gradle / Ivy
/*
* 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.core;
import java.io.IOException;
import freemarker.template.TemplateException;
/**
* Encapsulates an array of TemplateElement objects.
*/
final class MixedContent extends TemplateElement {
MixedContent() { }
/**
* @deprecated Use {@link #addChild(TemplateElement)} instead.
*/
@Deprecated
void addElement(TemplateElement element) {
addChild(element);
}
/**
* @deprecated Use {@link #addChild(int, TemplateElement)} instead.
*/
@Deprecated
void addElement(int index, TemplateElement element) {
addChild(index, element);
}
@Override
TemplateElement postParseCleanup(boolean stripWhitespace)
throws ParseException {
super.postParseCleanup(stripWhitespace);
return getChildCount() == 1 ? getChild(0) : this;
}
/**
* Processes the contents of the internal TemplateElement list,
* and outputs the resulting text.
*/
@Override
TemplateElement[] accept(Environment env)
throws TemplateException, IOException {
return getChildBuffer();
}
@Override
protected String dump(boolean canonical) {
if (canonical) {
return getChildrenCanonicalForm();
} else {
if (getParentElement() == null) {
return "root";
}
return getNodeTypeSymbol(); // MixedContent is uninteresting in a stack trace.
}
}
@Override
protected boolean isOutputCacheable() {
int ln = getChildCount();
for (int i = 0; i < ln; i++) {
if (!getChild(i).isOutputCacheable()) {
return false;
}
}
return true;
}
@Override
String getNodeTypeSymbol() {
return "#mixed_content";
}
@Override
int getParameterCount() {
return 0;
}
@Override
Object getParameterValue(int idx) {
throw new IndexOutOfBoundsException();
}
@Override
ParameterRole getParameterRole(int idx) {
throw new IndexOutOfBoundsException();
}
@Override
boolean isIgnorable(boolean stripWhitespace) {
return getChildCount() == 0;
}
@Override
boolean isNestedBlockRepeater() {
return false;
}
}