/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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.seasar.extension.sql.node;
import org.seasar.extension.sql.Node;
import org.seasar.extension.sql.SemicolonNotAllowedRuntimeException;
import org.seasar.extension.sql.SqlContext;
import org.seasar.framework.beans.BeanDesc;
import org.seasar.framework.beans.PropertyDesc;
import org.seasar.framework.beans.factory.BeanDescFactory;
import org.seasar.framework.util.StringUtil;
/**
* 値を埋め込む用の{@link Node}です。
*
* @author higa
*
*/
public class EmbeddedValueNode extends AbstractNode {
private String expression;
private String baseName;
private String propertyName;
/**
* <code>EmbeddedValueNode</code>を作成します。
*
* @param expression
*/
public EmbeddedValueNode(String expression) {
this.expression = expression;
String[] array = StringUtil.split(expression, ".");
this.baseName = array[0];
if (array.length > 1) {
this.propertyName = array[1];
}
}
/**
* 式を返します。
*
* @return
*/
public String getExpression() {
return expression;
}
public void accept(SqlContext ctx) {
Object value = ctx.getArg(baseName);
Class clazz = ctx.getArgType(baseName);
if (propertyName != null) {
BeanDesc beanDesc = BeanDescFactory.getBeanDesc(clazz);
PropertyDesc pd = beanDesc.getPropertyDesc(propertyName);
value = pd.getValue(value);
clazz = pd.getPropertyType();
}
if (value != null) {
String sql = value.toString();
if (sql.indexOf(';') >= 0) {
throw new SemicolonNotAllowedRuntimeException();
}
ctx.addSql(sql);
}
}
}