Uses of Class
org.basex.query.xpath.expr.Expr

Packages that use Expr

org.basex.query.xpath	Includes an implementation of XPath 1.0.
org.basex.query.xpath.expr	Contains XPath 1.0 expressions.
org.basex.query.xpath.func	Contains XPath 1.0 functions.
org.basex.query.xpath.internal	Contains internally used XPath expressions.
org.basex.query.xpath.locpath	Contains classes for the evaluation of XPath 1.0 location steps.
org.basex.query.xpath.values	Contains containers for XPath 1.0 data types.

Uses of Expr in org.basex.query.xpath

Methods in org.basex.query.xpath that return Expr

static Expr[]

XPOptimizer.getIndexExpr(Expr[] ex) Checks if all path expressions are the same; if yes, a path has to be only evaluated once.

Methods in org.basex.query.xpath with parameters of type Expr

static void	XPOptimizer.addText(Expr ex, XPContext ctx) Adds a text step to the specified path.
Item	XPContext.eval(Expr e) Evaluates the expression with the specified context set.
static Expr[]	XPOptimizer.getIndexExpr(Expr[] ex) Checks if all path expressions are the same; if yes, a path has to be only evaluated once.

Constructors in org.basex.query.xpath with parameters of type Expr

XPContext(Expr expr)
Constructor.

Uses of Expr in org.basex.query.xpath.expr

Subclasses of Expr in org.basex.query.xpath.expr

class	And Logical AND Expression.
class	ArrayExpr This is an abstract class for array expressions.
class	Calculation Calculation Expression.
class	Comparison Abstract Compare Expression.
class	DualExpr Abstract Expression with two arguments.
class	Equality Equality Expression Able to express equality or inequality.
class	Filter Filter Expression filtering a nodeset.
class	FTAnd Logical FTAnd expression.
class	FTContains FTContains Expression; used for fulltext operations.
class	FTIntersection FTIntersection Expression.
class	FTMildNot Logical FTMildNot expression.
class	FTNotExprs FTNotExprs.
class	FTOr Logical FTOr expression.
class	FTUnaryNot Logical FTUnaryNot expression.
class	FTUnion FTUnion Expression.
class	InterSect XPath Intersect Expression.
class	Or Logical OR expression.
class	Path Path Expression.
class	Relational XPath Relational Expression.
class	Unary XPath Unary Expression.
class	Union XPath Union Expression.

Fields in org.basex.query.xpath.expr declared as Expr

Expr	Path.expr Expression to be evaluated.
Expr	DualExpr.expr1 First Expression.
Expr	DualExpr.expr2 Second Expression.
Expr[]	ArrayExpr.exprs Array with arguments.
Expr	Path.path Location path.

Methods in org.basex.query.xpath.expr that return Expr

Expr	Union.compile(XPContext ctx)
Expr	Unary.compile(XPContext ctx)
Expr	Relational.compile(XPContext ctx)
Expr	Path.compile(XPContext ctx)
Expr	Or.compile(XPContext ctx)
Expr	InterSect.compile(XPContext ctx)
Expr	FTUnion.compile(XPContext ctx)
Expr	FTUnaryNot.compile(XPContext ctx)
Expr	FTOr.compile(XPContext ctx)
Expr	FTNotExprs.compile(XPContext ctx)
Expr	FTMildNot.compile(XPContext ctx)
Expr	FTIntersection.compile(XPContext ctx)
Expr	FTContains.compile(XPContext ctx)
Expr	FTAnd.compile(XPContext ctx)
Expr	Filter.compile(XPContext ctx)
abstract Expr	Expr.compile(XPContext ctx) Tries to optimize the Expression.
Expr	Equality.compile(XPContext ctx)
Expr	Calculation.compile(XPContext ctx)
Expr	And.compile(XPContext ctx)
Expr	Or.indexEquivalent(XPContext ctx, Step curr)
Expr	FTUnaryNot.indexEquivalent(XPContext ctx, Step curr)
Expr	FTOr.indexEquivalent(XPContext ctx, Step curr)
Expr	FTMildNot.indexEquivalent(XPContext ctx, Step curr)
Expr	FTContains.indexEquivalent(XPContext ctx, Step curr)
Expr	FTAnd.indexEquivalent(XPContext ctx, Step curr)
Expr	Expr.indexEquivalent(XPContext ctx, Step step) For predicate optimization.
Expr	And.indexEquivalent(XPContext ctx, Step curr)

Methods in org.basex.query.xpath.expr with parameters of type Expr

boolean	Relational.sameAs(Expr cmp)
boolean	Expr.sameAs(Expr cmp) Checks current and specified expression for equivalence.
boolean	ArrayExpr.sameAs(Expr cmp)

Constructors in org.basex.query.xpath.expr with parameters of type Expr

And(Expr[] e)
Constructor.

Calculation(Expr e1, Expr e2, Calc t)
Constructor.

Equality(Expr e1, Expr e2, Comp t)
Constructor.

Filter(Expr e, Preds p)
Constructor.

FTAnd(Expr[] e)
Constructor.

FTContains(Expr e1, Expr e2, FTOption opt)
Constructor.

FTIntersection(Expr[] e)
Constructor.

FTMildNot(Expr[] e)
Constructor.

FTNotExprs(Expr[] e)
Constructor.

FTOr(Expr[] e)
Constructor.

FTUnaryNot(Expr[] e)
Constructor.

FTUnion(Expr[] e)
Constructor.

InterSect(Expr[] e)
Constructor.

Or(Expr[] e)
Constructor.

Path(Expr e, Expr p)
Constructor for a relative location path.

Relational(Expr e1, Expr e2, Comp t)
Constructor.

Unary(Expr e)
Constructor.

Union(Expr[] e)
Constructor.

Uses of Expr in org.basex.query.xpath.func

Subclasses of Expr in org.basex.query.xpath.func

class	BooleanFunc Constructor for boolean() function.
class	Ceiling Constructor for ceiling() function.
class	Concat Constructor for concat() function.
class	Contains Constructor for contains() function.
class	ContainsLC Constructor for BaseX specific containslc() function; compares all tokens in lower case.
class	Count Constructor for count() function.
class	Distinct Constructor for the BaseX specific distinct() function.
class	Doc Constructor for the doc() and document() function.
class	False Constructor for false() function.
class	Floor Constructor for floor() function.
class	Func Interface for XPath functions.
class	Id Constructor for id() function.
class	Lang Constructor for local-name() function.
class	Last Constructor for last() function.
class	LocalName Constructor for local-name() function.
class	Name Constructor for name() function.
class	NamespaceURI Constructor for namespace-uri() function.
class	Nodes Constructor for BaseX specific nodes() function; returns a node set with the pre nodes specified in the argument literal.
class	NormalizeSpace Constructor for string() function.
class	Not Constructor for not() function.
class	NumFunc Constructor for number() function.
class	Position Constructor for position() function.
class	Random Constructor for the BaseX specific random() function.
class	Round Constructor for round() function.
class	Sort Constructor for the BaseX specific sort() function.
class	StartsWith Constructor for starts-with() function.
class	StringFunc Constructor for string() function.
class	StringLength Constructor for string-length() function.
class	SubStr Constructor for substring() function.
class	SubstringAfter Constructor for substring-after() function.
class	SubstringBefore Constructor for substring-before() function.
class	Sum Constructor for sum() function.
class	Translate Constructor for translate() function.
class	True Constructor for true() function.

Methods in org.basex.query.xpath.func that return Expr

Expr	Round.compile(XPContext ctx)
Expr	Not.compile(XPContext ctx)
Expr	Func.compile(XPContext ctx)
Expr	Floor.compile(XPContext ctx)
Expr	Count.compile(XPContext ctx)
Expr	ContainsLC.compile(XPContext ctx)
Expr	Contains.compile(XPContext ctx)
Expr	Ceiling.compile(XPContext ctx)

Methods in org.basex.query.xpath.func with parameters of type Expr

Func	XPathContext.getFunction(byte[] name, Expr[] args) Evaluates the specified function.

Constructors in org.basex.query.xpath.func with parameters of type Expr

BooleanFunc(Expr[] arg)
Function Constructor.

Ceiling(Expr[] arg)
Function Constructor.

Concat(Expr[] arg)
Function Constructor.

Contains(Expr[] arg)
Function Constructor.

ContainsLC(Expr[] arg)
Function Constructor.

Count(Expr[] arg)
Function Constructor.

Distinct(Expr[] arg)
Function Constructor.

Doc(Expr[] arg)
Function Constructor.

False(Expr[] arg)
Function Constructor.

Floor(Expr[] arg)
Function Constructor.

Func(Expr[] arg, java.lang.String dsc)
Function constructor.

Id(Expr[] arg)
Function Constructor.

Lang(Expr[] arg)
Function Constructor.

Last(Expr[] arg)
Function Constructor.

LocalName(Expr[] arg)
Function Constructor.

Name(Expr[] arg)
Function Constructor.

NamespaceURI(Expr[] arg)
Function Constructor.

Nodes(Expr[] arg)
Function Constructor.

NormalizeSpace(Expr[] arg)
Function Constructor.

Not(Expr[] arg)
Function Constructor.

NumFunc(Expr[] arg)
Function Constructor.

Position(Expr[] arg)
Function Constructor.

Random(Expr[] arg)
Function Constructor.

Round(Expr[] arg)
Function Constructor.

Sort(Expr[] arg)
Function Constructor.

StartsWith(Expr[] arg)
Function Constructor.

StringFunc(Expr[] arg)
Function Constructor.

StringLength(Expr[] arg)
Function Constructor.

SubStr(Expr[] arg)
Function Constructor.

SubstringAfter(Expr[] arg)
Function Constructor.

SubstringBefore(Expr[] arg)
Function Constructor.

Sum(Expr[] arg)
Function Constructor.

Translate(Expr[] arg)
Function Constructor.

True(Expr[] arg)
Function Constructor.

Uses of Expr in org.basex.query.xpath.internal

Subclasses of Expr in org.basex.query.xpath.internal

class	AllOf This Expression assembles a number of similar comparisons which all has to evaluate true.
class	FTIndex This expression retrieves the ids of indexed fulltext terms.
class	IndexAccess This index class retrieves attribute values from the index.
class	IndexMatch This class is only internally used for index optimizations.
class	InternalExpr Abstract class for internal (optimized) XPath expressions.
class	OneOf This Expression assembles a number of similar comparisons of which one has to evluate true.
class	Range RangeExpr Able to perform numeric range queries.

Methods in org.basex.query.xpath.internal that return Expr

Expr	InternalExpr.compile(XPContext ctx)
Expr	OneOf.indexEquivalent(XPContext ctx, Step curr)
Expr	AllOf.indexEquivalent(XPContext ctx, Step curr)

Constructors in org.basex.query.xpath.internal with parameters of type Expr

IndexMatch(LocPath p, Expr exp, LocPath m)
Constructor.

Range(Expr e, Item mn, Item mx)
Constructor.

Uses of Expr in org.basex.query.xpath.locpath

Subclasses of Expr in org.basex.query.xpath.locpath

class	LocPath LocationPath (absolute or relative).
class	LocPathAbs Absolute Location Path Expression.
class	LocPathRel Relative Location Path Expression.

Methods in org.basex.query.xpath.locpath that return Expr

Expr	LocPath.compile(XPContext ctx)
Expr	PredSimple.indexEquivalent(XPContext ctx, Step step)
Expr	PredPos.indexEquivalent(XPContext ctx, Step step)

Methods in org.basex.query.xpath.locpath with parameters of type Expr

void	Preds.add(Expr expr) Adds an expression as predicate.
Index.TYPE	LocPath.indexable(XPContext ctx, Expr exp, Comp cmp) Checks if the path is indexable.
boolean	LocPath.sameAs(Expr cmp)

Uses of Expr in org.basex.query.xpath.values

Subclasses of Expr in org.basex.query.xpath.values

class	Bool XPath Value representing a boolean.
class	Item Interface for all XPath items (results of expressions).
class	Literal XPath Literal.
class	NodeSet XPath Value representing a NodeSet.
class	Num XPath value type modeling a number.

Methods in org.basex.query.xpath.values that return Expr

Expr	Item.compile(XPContext ctx)