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java.lang.Objectorg.basex.query.ExprInfo
org.basex.query.expr.Expr
org.basex.query.expr.Arr
org.basex.query.expr.CmpV
public final class CmpV
Value comparison.
Nested Class Summary | |
---|---|
static class |
CmpV.Comp
Comparators. |
Nested classes/interfaces inherited from class org.basex.query.expr.Expr |
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Expr.Use |
Field Summary | |
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CmpV.Comp |
cmp
Comparator. |
Fields inherited from class org.basex.query.expr.Arr |
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expr |
Constructor Summary | |
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CmpV(Expr e1,
Expr e2,
CmpV.Comp c)
Constructor. |
Method Summary | |
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Bln |
atomic(QueryContext ctx)
Evaluates the expression and returns the resulting item or a null reference. |
String |
color()
Returns a color string for the expression. |
Expr |
comp(QueryContext ctx)
Optimizes and compiles the expression. |
String |
info()
Returns a string description of the expression. |
void |
plan(Serializer ser)
Recursively sends the abstract syntax of this expression to the specified serializer. |
Return |
returned(QueryContext ctx)
Indicates the return type of an expression. |
String |
toString()
|
static boolean |
valCheck(Item a,
Item b)
Checks if the specified items can be compared. |
Methods inherited from class org.basex.query.expr.Arr |
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duplicates, indexEquivalent, removable, remove, uses |
Methods inherited from class org.basex.query.expr.Expr |
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addText, checkCtx, checkDbl, checkItr, e, ebv, i, indexAccessible, iter, sameAs, size, test, v |
Methods inherited from class org.basex.query.ExprInfo |
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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 CmpV.Comp cmp
Constructor Detail |
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public CmpV(Expr e1, Expr e2, CmpV.Comp c)
e1
- first expressione2
- second expressionc
- comparatorMethod Detail |
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public Expr comp(QueryContext ctx) throws QueryException
Expr
comp
in class Arr
ctx
- query context
QueryException
- query exceptionpublic Bln atomic(QueryContext ctx) throws QueryException
Expr
null
reference.
If this method is not overwritten, Expr.iter(org.basex.query.QueryContext)
must be implemented.
atomic
in class Expr
ctx
- query context
QueryException
- query exceptionpublic static boolean valCheck(Item a, Item b)
a
- first itemb
- second item
public Return returned(QueryContext ctx)
Expr
returned
in class Expr
ctx
- query context
public void plan(Serializer ser) throws IOException
ExprInfo
plan
in class Arr
ser
- serializer
IOException
- I/O exceptionpublic String color()
ExprInfo
color
in class ExprInfo
public String info()
ExprInfo
ExprInfo.toString()
method, arguments are not included
in the output.
info
in class ExprInfo
public String toString()
toString
in class ExprInfo
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