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java.lang.Objectnet.sf.saxon.expr.ComputedExpression
net.sf.saxon.expr.Assignation
net.sf.saxon.expr.QuantifiedExpression
class QuantifiedExpression
A QuantifiedExpression tests whether some/all items in a sequence satisfy some condition.
Field Summary |
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Fields inherited from class net.sf.saxon.expr.Assignation |
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action, declaration, sequence, slotNumber, variableName |
Fields inherited from class net.sf.saxon.expr.ComputedExpression |
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lineNumber, NO_ARGUMENTS, staticProperties |
Constructor Summary | |
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QuantifiedExpression()
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Method Summary | |
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Expression |
analyze(StaticContext env)
Type-check the expression |
int |
computeCardinality()
Determine the static cardinality |
void |
display(int level,
NamePool pool)
Diagnostic print of expression structure |
boolean |
effectiveBooleanValue(XPathContext context)
Get the result as a boolean |
Item |
evaluateItem(XPathContext context)
Evaluate the expression to return a singleton value |
ItemType |
getItemType()
Determine the data type of the items returned by the expression |
SequenceType |
getRequiredType()
Get data type of the range variable (part of the Binding interface) |
void |
setOperator(int operator)
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Methods inherited from class net.sf.saxon.expr.Assignation |
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evaluateVariable, getSubExpressions, getVariableName, promote, setAction, setSequence, setSlotNumber, setVariableDeclaration, simplify |
Methods inherited from class net.sf.saxon.expr.ComputedExpression |
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computeDependencies, computeSpecialProperties, computeStaticProperties, dynamicError, evaluateAsString, getCardinality, getDependencies, getIntrinsicDependencies, getLineNumber, getSpecialProperties, iterate, markTailFunctionCalls, setLineNumber, typeError |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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QuantifiedExpression()
Method Detail |
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public void setOperator(int operator)
public int computeCardinality()
computeCardinality
in class ComputedExpression
public Expression analyze(StaticContext env) throws XPathException
env
- the static context of the expression
XPathException
- if an error is discovered during this phase
(typically a type error)public Item evaluateItem(XPathContext context) throws XPathException
evaluateItem
in interface Expression
evaluateItem
in class ComputedExpression
context
- The context in which the expression is to be evaluated
XPathException
- if any dynamic error occurs evaluating the
expressionpublic boolean effectiveBooleanValue(XPathContext context) throws XPathException
effectiveBooleanValue
in interface Expression
effectiveBooleanValue
in class ComputedExpression
context
- The context in which the expression is to be evaluated
XPathException
- if any dynamic error occurs evaluating the
expressionpublic ItemType getItemType()
public SequenceType getRequiredType()
getRequiredType
in interface Binding
getRequiredType
in class Assignation
public void display(int level, NamePool pool)
level
- indentation level for this expression
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