61 lines
1.8 KiB
Java
61 lines
1.8 KiB
Java
/**
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* Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
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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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*/
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package com.jfinal.template.stat;
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import com.jfinal.template.expr.ast.ExprList;
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import com.jfinal.template.stat.ast.Output;
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/**
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* OutputDirectiveFactory
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* 用于定制自定义输出指令，替换系统默认输出指令，满足个性化需求
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*
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* 用法：
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* 1：定义 MyOutput
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* public class MyOutput extends Output {
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* public MyOutput(ExprList exprList) {
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* super(exprList);
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* }
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*
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* public void exec(Env env, Scope scope, Writer writer) {
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* Object value = exprList.eval(scope);
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* if (value != null) {
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* write(writer, value.toString());
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* }
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* }
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* }
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*
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* 2：定义 MyOutputDirectiveFactory
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* public class MyOutputDirectiveFactory extends OutputDirectiveFactory {
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* public Output getOutputDirective(ExprList exprList) {
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* return new MyOutput(exprList);
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* }
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* }
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*
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* 3：配置
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* engine.setOutputDirectiveFactory(new MyOutputDirectiveFactory())
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*/
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public class OutputDirectiveFactory {
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public static final OutputDirectiveFactory me = new OutputDirectiveFactory();
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public Output getOutputDirective(ExprList exprList, Location location) {
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return new Output(exprList, location);
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}
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}
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