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java.lang.Objectorg.basex.query.ExprInfo
org.basex.query.xpath.expr.Expr
org.basex.query.xpath.expr.Arr
public abstract class Arr
Abstract array expression.
Field Summary | |
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Expr[] |
expr
Expression list. |
Method Summary | |
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Expr |
comp(XPContext ctx)
Optimizes the expression. |
void |
plan(Serializer ser)
Recursively sends the abstract syntax of this expression to the specified serializer. |
boolean |
sameAs(Expr cmp)
Checks current and specified expression for equivalence. |
boolean |
usesPos()
Checks whether this Expression (or its children) make use of the position parameter. |
boolean |
usesSize()
Checks whether this Expression (or its children) make use of the setsize parameter. |
Methods inherited from class org.basex.query.xpath.expr.Expr |
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eval, indexEquivalent, indexSizes, returnedValue |
Methods inherited from class org.basex.query.ExprInfo |
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color, info, name, toString |
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 Expr[] expr
Method Detail |
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public Expr comp(XPContext ctx) throws QueryException
Expr
comp
in class Expr
ctx
- expression context
QueryException
- evaluation exceptionpublic final boolean usesPos()
Expr
usesPos
in class Expr
public final boolean usesSize()
Expr
usesSize
in class Expr
public boolean sameAs(Expr cmp)
Expr
sameAs
in class Expr
cmp
- expression to be compared
public void plan(Serializer ser) throws java.io.IOException
ExprInfo
plan
in class ExprInfo
ser
- serializer
java.io.IOException
- exception
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