Package org.basex.query

Enum CompileContext.Simplify

java.lang.Object

java.lang.Enum<CompileContext.Simplify>

org.basex.query.CompileContext.Simplify

All Implemented Interfaces:

Serializable, Comparable<CompileContext.Simplify>

Enclosing class:

CompileContext

public static enum CompileContext.Simplify
extends Enum<CompileContext.Simplify>

Compile-time simplifications.

See Also:

Expr.simplifyFor(Simplify, CompileContext)

Enum Constant Summary

Enum Constants

Enum Constant	Description
COUNT	Count and existence checks.
DATA	Atomizations.
DISTINCT	Distinct values.
EBV	EBV checks.
NUMBER	Numeric arguments.
PREDICATE	Predicate checks.
STRING	String arguments.

Method Summary

Modifier and Type	Method	Description
boolean	oneOf(CompileContext.Simplify... values)	Checks if this is one of the specified types.
static CompileContext.Simplify	valueOf(String name)	Returns the enum constant of this type with the specified name.
static CompileContext.Simplify[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

EBV

public static final CompileContext.Simplify EBV

EBV checks. Requested by If, Logical, Preds, Condition, Where, FnBoolean, FnNot. Evaluated by Expr Filter, List, SimpleMap, Path and others.

DATA

public static final CompileContext.Simplify DATA

Atomizations. Requested by FnData, FnDistinctValues, GroupSpec, OrderKey, Lookup, TypeCheck. Evaluated by Cast, TypeCheck, CNode, FnData.

STRING

public static final CompileContext.Simplify STRING

String arguments. Requested by Cast, CmpG, StandardFunc and others. Evaluated by Cast, TypeCheck, CNode, FnData, FnString, FnReplicate.

NUMBER

public static final CompileContext.Simplify NUMBER

Numeric arguments. Requested by Arith, CmpIR, Range, StandardFunc and others. Evaluated by Cast, TypeCheck, CNode, FnData, FnNumber, FnReplicate.

PREDICATE

public static final CompileContext.Simplify PREDICATE

Predicate checks. Requested by Preds. Evaluated by Expr, FnData, Cast, TypeCheck, SimpleMap, FnNumber, FnReplicate.

DISTINCT

public static final CompileContext.Simplify DISTINCT

Distinct values. Requested by CmpG and FnDistinctValues. Evaluated by Filter, List, SimpleMap and others.

COUNT

public static final CompileContext.Simplify COUNT

Count and existence checks. Requested by FnCount, FnEmpty and FnExists. Evaluated by Filter, GFLWOR, FnReverse and others.

Method Detail

values

public static CompileContext.Simplify[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (CompileContext.Simplify c : CompileContext.Simplify.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static CompileContext.Simplify valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

oneOf

public boolean oneOf(CompileContext.Simplify... values)

Checks if this is one of the specified types.

Parameters:

values - values

Returns:

result of check