protected ExtensionQuery(ExtensionQuery other) : base(other)
{
this.prefix = other.prefix;
this.name = other.name;
this.xsltContext = other.xsltContext;
_queryIterator = (ResetableIterator)Clone(other._queryIterator);
}
/// <exception cref="System.IO.IOException"/>
internal WrappedRecordReader(int id, RecordReader <K, U> rr, Type cmpcl, Configuration
conf)
{
// index at which values will be inserted in collector
// key at the top of this RR
// value assoc with khead
this.id = id;
this.rr = rr;
this.conf = (conf == null) ? new Configuration() : conf;
khead = rr.CreateKey();
vhead = rr.CreateValue();
try
{
cmp = (null == cmpcl) ? WritableComparator.Get(khead.GetType(), this.conf) : System.Activator.CreateInstance
(cmpcl);
}
catch (InstantiationException e)
{
throw (IOException)Sharpen.Extensions.InitCause(new IOException(), e);
}
catch (MemberAccessException e)
{
throw (IOException)Sharpen.Extensions.InitCause(new IOException(), e);
}
vjoin = new StreamBackedIterator <U>();
Next();
}
string Dump(ResetableIterator it) {
it = (ResetableIterator) it.Clone();
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append("(");
do {
XPathNavigator nav = it.Current.Clone();
nav.MoveToAttribute("id1", "");
sb.Append(nav.Value);
sb.Append(", ");
} while (it.MoveNext());
sb.Length = sb.Length - 2;
sb.Append(")");
return sb.ToString();
}
protected object ProcessResult(object value) {
if (value is string ) return value;
if (value is double ) return value;
if (value is bool ) return value;
if (value is XPathNavigator) return value;
if (value is Int32 ) return (double)(Int32)value;
if (value == null) {
queryIterator = XPathEmptyIterator.Instance;
return this; // We map null to NodeSet to let $null/foo work well.
}
ResetableIterator resetable = value as ResetableIterator;
if (resetable != null) {
// We need Clone() value because variable may be used several times
// and they shouldn't
queryIterator = (ResetableIterator)resetable.Clone();
return this;
}
XPathNodeIterator nodeIterator = value as XPathNodeIterator;
if (nodeIterator != null) {
queryIterator = new XPathArrayIterator(nodeIterator);
return this;
}
IXPathNavigable navigable = value as IXPathNavigable;
if(navigable != null) {
return navigable.CreateNavigator();
}
if (value is Int16 ) return (double)(Int16)value;
if (value is Int64 ) return (double)(Int64)value;
if (value is UInt32) return (double)(UInt32)value;
if (value is UInt16) return (double)(UInt16)value;
if (value is UInt64) return (double)(UInt64)value;
if (value is Single) return (double)(Single)value;
if (value is Decimal) return (double)(Decimal)value;
return value.ToString();
}
protected ResetableIterator(ResetableIterator other) {
base.count = other.count;
}
public XmlIteratorQuery(ResetableIterator it)
{
this.it = it;
}
protected object ProcessResult(object value)
{
if (value is string)
{
return value;
}
if (value is double)
{
return value;
}
if (value is bool)
{
return value;
}
if (value is XPathNavigator)
{
return value;
}
if (value is int)
{
return (double) ((int) value);
}
if (value == null)
{
this.queryIterator = XPathEmptyIterator.Instance;
return this;
}
ResetableIterator iterator = value as ResetableIterator;
if (iterator != null)
{
this.queryIterator = (ResetableIterator) iterator.Clone();
return this;
}
XPathNodeIterator nodeIterator = value as XPathNodeIterator;
if (nodeIterator != null)
{
this.queryIterator = new XPathArrayIterator(nodeIterator);
return this;
}
IXPathNavigable navigable = value as IXPathNavigable;
if (navigable != null)
{
return navigable.CreateNavigator();
}
if (value is short)
{
return (double) ((short) value);
}
if (value is long)
{
return (double) ((long) value);
}
if (value is uint)
{
return (double) ((uint) value);
}
if (value is ushort)
{
return (double) ((ushort) value);
}
if (value is ulong)
{
return (double) ((ulong) value);
}
if (value is float)
{
return (double) ((float) value);
}
if (value is decimal)
{
return (double) ((decimal) value);
}
return value.ToString();
}
/// <summary>Register a given iterator at position id.</summary>
/// <exception cref="System.IO.IOException"/>
public virtual void Add(int id, ResetableIterator <X> i)
{
this.iters[id] = i;
}
protected XmlIteratorQuery(XmlIteratorQuery other) : base(other) {
this.it = (ResetableIterator)other.it.Clone();
}
public XmlIteratorQuery(XPathNodeIterator it) {
this.it = it as ResetableIterator;
if (this.it == null) {
this.it = new XPathArrayIterator(it);
}
}
