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java.lang.Objectcom.icl.saxon.expr.Expression
com.icl.saxon.expr.Value
com.icl.saxon.expr.NodeSetValue
com.icl.saxon.expr.SingletonNodeSet
com.icl.saxon.expr.TextFragmentValue
This class represents a Value of type result tree fragment, specifically,
an RTF whose root owns a single text node.
| Field Summary |
| Fields inherited from class com.icl.saxon.expr.SingletonNodeSet |
generalUseAllowed, node |
| Fields inherited from class com.icl.saxon.expr.Value |
ANY, BOOLEAN, NODESET, NUMBER, OBJECT, STRING |
| Fields inherited from class com.icl.saxon.expr.Expression |
staticContext |
| Constructor Summary | |
TextFragmentValue(java.lang.String value,
java.lang.String systemId,
Controller controller)
Constructor: create a result tree fragment containing a single text node |
|
| Method Summary | |
boolean |
asBoolean()
Convert the result tree fragment to a boolean |
double |
asNumber()
Convert the result tree fragment to a number |
java.lang.String |
asString()
Convert the result tree fragment to a string. |
boolean |
compare(int operator,
Value other)
Test how a FragmentValue compares to another Value under a relational comparison. |
void |
copy(Outputter out)
Copy the result tree fragment value to a given Outputter |
void |
display(int level)
Diagnostic print of expression structure |
NodeEnumeration |
enumerate()
Return an enumeration of this nodeset value. |
boolean |
equals(Value other)
Test whether a nodeset "equals" another Value |
int |
getCount()
Count the nodes in the node-set. |
int |
getDataType()
Determine the data type of the expression, if possible |
NodeInfo |
getFirst()
Get the first node in the nodeset (in document order) |
DocumentInfo |
getRootNode()
Get the root (document) node |
int |
getType()
Return the type of the value |
boolean |
notEquals(Value other)
Test whether a nodeset "not-equals" another Value |
void |
outputStringValue(Outputter out,
Context context)
Evaluate an expression as a String and write the result to the specified outputter. |
Expression |
simplify()
Simplify the expression |
| Methods inherited from class com.icl.saxon.expr.SingletonNodeSet |
allowGeneralUse, evaluate, evaluateAsNodeSet, getLength, isGeneralUseAllowed, isSorted, item, setSorted, sort |
| Methods inherited from class com.icl.saxon.expr.NodeSetValue |
conversionPreference, convertToJava, enumerate |
| Methods inherited from class com.icl.saxon.expr.Value |
getDependencies, inverse, numericCompare, reduce, stringToNumber |
| Methods inherited from class com.icl.saxon.expr.Expression |
containsReferences, evaluateAsBoolean, evaluateAsNumber, evaluateAsString, getStaticContext, indent, isContextDocumentNodeSet, make, setStaticContext, usesCurrent |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public TextFragmentValue(java.lang.String value,
java.lang.String systemId,
Controller controller)
| Method Detail |
public java.lang.String asString()
asString in class SingletonNodeSet
public void outputStringValue(Outputter out,
Context context)
throws TransformerException
outputStringValue in class Expressionout - The required outputtercontext - The context in which the expression is to be evaluated
TransformerExceptionpublic double asNumber()
asNumber in class NodeSetValuepublic boolean asBoolean()
asBoolean in class SingletonNodeSetpublic int getCount()
getCount in class SingletonNodeSetpublic Expression simplify()
simplify in class SingletonNodeSetpublic NodeInfo getFirst()
getFirst in class SingletonNodeSet
public NodeEnumeration enumerate()
throws XPathException
enumerate in class SingletonNodeSetXPathException
public boolean equals(Value other)
throws XPathException
equals in class SingletonNodeSetXPathException
public boolean notEquals(Value other)
throws XPathException
notEquals in class SingletonNodeSetXPathException
public boolean compare(int operator,
Value other)
throws XPathException
compare in class NodeSetValueoperator - The comparison operator, one of Tokenizer.LE, Tokenizer.LT,
Tokenizer.GE, Tokenizer.GT,
XPathExceptionpublic int getType()
public int getDataType()
getDataType in class NodeSetValuepublic DocumentInfo getRootNode()
public void copy(Outputter out)
throws TransformerException
TransformerExceptionpublic void display(int level)
display in class NodeSetValue
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