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java.lang.Objectorg.basex.query.ExprInfo
org.basex.query.xquery.expr.Expr
org.basex.query.xquery.expr.Arr
org.basex.query.xquery.path.Step
public class Step
Location Step expression.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.basex.query.xquery.expr.Expr |
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Expr.Return, Expr.Using |
Field Summary | |
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Axis |
axis
Axis. |
Test |
test
Node test. |
Fields inherited from class org.basex.query.xquery.expr.Arr |
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expr |
Constructor Summary | |
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Step(Axis a,
Test t,
Expr[] p)
Constructor. |
Method Summary | |
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Expr |
comp(XQContext ctx)
Optimizes and compiles the expression. |
NodeIter |
iter(XQContext ctx)
Evaluates the expression and returns an iterator on the resulting items. |
void |
plan(Serializer ser)
Recursively sends the abstract syntax of this expression to the specified serializer. |
Type |
returned()
Indicates if an expression returns the specified type. |
boolean |
simple(Axis ax)
Checks if this is a simple axis (node test, no predicates). |
java.lang.String |
toString()
|
boolean |
uses(Expr.Using u)
Indicates if an expression uses the specified type. |
Methods inherited from class org.basex.query.xquery.expr.Expr |
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e, i |
Methods inherited from class org.basex.query.ExprInfo |
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color, info, name |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public Axis axis
public Test test
Constructor Detail |
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public Step(Axis a, Test t, Expr[] p)
a
- axist
- node testp
- predicatesMethod Detail |
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public Expr comp(XQContext ctx) throws XQException
Expr
comp
in class Arr
ctx
- query context
XQException
- evaluation exceptionpublic NodeIter iter(XQContext ctx) throws XQException
Expr
iter
in class Expr
ctx
- query context
XQException
- evaluation exceptionpublic boolean simple(Axis ax)
ax
- axis to be checked
public boolean uses(Expr.Using u)
Expr
uses
in class Arr
u
- using flag
public Type returned()
Expr
returned
in class Arr
public void plan(Serializer ser) throws java.io.IOException
ExprInfo
plan
in class Arr
ser
- serializer
java.io.IOException
- exceptionpublic java.lang.String toString()
toString
in class ExprInfo
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