本文整理汇总了Java中org.apache.el.parser.ELParser类的典型用法代码示例。如果您正苦于以下问题:Java ELParser类的具体用法?Java ELParser怎么用?Java ELParser使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ELParser类属于org.apache.el.parser包,在下文中一共展示了ELParser类的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Java代码示例。
示例1: createNodeInternal
import org.apache.el.parser.ELParser; //导入依赖的package包/类
private static final Node createNodeInternal(String expr)
throws ELException {
if (expr == null) {
throw new ELException(MessageFactory.get("error.null"));
}
Node n = cache.get(expr);
if (n == null) {
try {
n = (new ELParser(new StringReader(expr)))
.CompositeExpression();
// validate composite expression
int numChildren = n.jjtGetNumChildren();
if (numChildren == 1) {
n = n.jjtGetChild(0);
} else {
Class<?> type = null;
Node child = null;
for (int i = 0; i < numChildren; i++) {
child = n.jjtGetChild(i);
if (child instanceof AstLiteralExpression)
continue;
if (type == null)
type = child.getClass();
else {
if (!type.equals(child.getClass())) {
throw new ELException(MessageFactory.get(
"error.mixed", expr));
}
}
}
}
if (n instanceof AstDeferredExpression
|| n instanceof AstDynamicExpression) {
n = n.jjtGetChild(0);
}
cache.put(expr, n);
} catch (Exception e) {
throw new ELException(
MessageFactory.get("error.parseFail", expr), e);
}
}
return n;
}
开发者ID:liaokailin,项目名称:tomcat7,代码行数:47,代码来源:ExpressionBuilder.java
示例2: createNodeInternal
import org.apache.el.parser.ELParser; //导入依赖的package包/类
private final static Node createNodeInternal(String expr)
throws ELException {
if (expr == null) {
throw new ELException(MessageFactory.get("error.null"));
}
Node n = (Node) cache.get(expr);
if (n == null) {
try {
n = (new ELParser(new StringReader(expr)))
.CompositeExpression();
// validate composite expression
if (n instanceof AstCompositeExpression) {
int numChildren = n.jjtGetNumChildren();
if (numChildren == 1) {
n = n.jjtGetChild(0);
} else {
Class type = null;
Node child = null;
for (int i = 0; i < numChildren; i++) {
child = n.jjtGetChild(i);
if (child instanceof AstLiteralExpression)
continue;
if (type == null)
type = child.getClass();
else {
if (!type.equals(child.getClass())) {
throw new ELException(MessageFactory.get(
"error.mixed", expr));
}
}
}
}
}
if (n instanceof AstDeferredExpression
|| n instanceof AstDynamicExpression) {
n = n.jjtGetChild(0);
}
cache.put(expr, n);
} catch (ParseException pe) {
throw new ELException("Error Parsing: " + expr, pe);
}
}
return n;
}
开发者ID:lamsfoundation,项目名称:lams,代码行数:47,代码来源:ExpressionBuilder.java
示例3: createNodeInternal
import org.apache.el.parser.ELParser; //导入依赖的package包/类
private static final Node createNodeInternal(String expr) throws ELException {
if (expr == null) {
throw new ELException(MessageFactory.get("error.null"));
}
Node n = cache.get(expr);
if (n == null) {
try {
n = (new ELParser(new StringReader(expr))).CompositeExpression();
// validate composite expression
int numChildren = n.jjtGetNumChildren();
if (numChildren == 1) {
n = n.jjtGetChild(0);
} else {
Class<?> type = null;
Node child = null;
for (int i = 0; i < numChildren; i++) {
child = n.jjtGetChild(i);
if (child instanceof AstLiteralExpression)
continue;
if (type == null)
type = child.getClass();
else {
if (!type.equals(child.getClass())) {
throw new ELException(MessageFactory.get("error.mixed", expr));
}
}
}
}
if (n instanceof AstDeferredExpression || n instanceof AstDynamicExpression) {
n = n.jjtGetChild(0);
}
cache.put(expr, n);
} catch (Exception e) {
throw new ELException(MessageFactory.get("error.parseFail", expr), e);
}
}
return n;
}
开发者ID:how2j,项目名称:lazycat,代码行数:42,代码来源:ExpressionBuilder.java
注:本文中的org.apache.el.parser.ELParser类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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