本文整理汇总了Java中com.sun.org.apache.xpath.internal.Expression.execute方法的典型用法代码示例。如果您正苦于以下问题：Java Expression.execute方法的具体用法？Java Expression.execute怎么用？Java Expression.execute使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.sun.org.apache.xpath.internal.Expression的用法示例。
在下文中一共展示了Expression.execute方法的1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，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: executeFilterExpr
import com.sun.org.apache.xpath.internal.Expression; //导入方法依赖的package包/类
/**
* Execute the expression. Meant for reuse by other FilterExpr iterators
* that are not derived from this object.
*/
public static XNodeSet executeFilterExpr(int context, XPathContext xctxt,
PrefixResolver prefixResolver,
boolean isTopLevel,
int stackFrame,
Expression expr )
throws com.sun.org.apache.xml.internal.utils.WrappedRuntimeException
{
PrefixResolver savedResolver = xctxt.getNamespaceContext();
XNodeSet result = null;
try
{
xctxt.pushCurrentNode(context);
xctxt.setNamespaceContext(prefixResolver);
// The setRoot operation can take place with a reset operation,
// and so we may not be in the context of LocPathIterator#nextNode,
// so we have to set up the variable context, execute the expression,
// and then restore the variable context.
if (isTopLevel)
{
// System.out.println("calling m_expr.execute(getXPathContext())");
VariableStack vars = xctxt.getVarStack();
// These three statements need to be combined into one operation.
int savedStart = vars.getStackFrame();
vars.setStackFrame(stackFrame);
result = (com.sun.org.apache.xpath.internal.objects.XNodeSet) expr.execute(xctxt);
result.setShouldCacheNodes(true);
// These two statements need to be combined into one operation.
vars.setStackFrame(savedStart);
}
else
result = (com.sun.org.apache.xpath.internal.objects.XNodeSet) expr.execute(xctxt);
}
catch (javax.xml.transform.TransformerException se)
{
// TODO: Fix...
throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(se);
}
finally
{
xctxt.popCurrentNode();
xctxt.setNamespaceContext(savedResolver);
}
return result;
}