com.tailf.conf

Class XPathAbrevCompiler

Object

com.tailf.conf.XPathAbrevCompiler

All Implemented Interfaces:

Compiler

public class XPathAbrevCompiler
extends Object
implements Compiler

Field Summary

Fields inherited from interface com.tailf.conf.Compiler

AXIS_ANCESTOR, AXIS_ANCESTOR_OR_SELF, AXIS_ATTRIBUTE, AXIS_CHILD, AXIS_DESCENDANT, AXIS_DESCENDANT_OR_SELF, AXIS_FOLLOWING, AXIS_FOLLOWING_SIBLING, AXIS_NAMESPACE, AXIS_PARENT, AXIS_PRECEDING, AXIS_PRECEDING_SIBLING, AXIS_SELF, FUNCTION_CURRENT, NODE_TYPE_COMMENT, NODE_TYPE_NODE, NODE_TYPE_PI, NODE_TYPE_TEXT

Constructor Summary

Constructors

Constructor and Description
XPathAbrevCompiler()

Method Summary

Methods

Modifier and Type	Method and Description
Object	equal(Object left, Object right) Produces an EXPRESSION object representing the comparison: left equals to right
Object	expressionPath(Object expression, Object[] predicates, Object[] steps) Produces an EXPRESSION object representing a filter expression
Object	function(int code, Object[] args) Produces an EXPRESSION object representing the computation of a core function with the supplied arguments.
Object	function(Object name, Object[] args) Produces an EXPRESSION object representing the computation of a library function with the supplied arguments.
ConfObject[]	getKP()
Object	literal(String value) Produces an EXPRESSION object that represents a string constant.
Object	locationPath(boolean absolute, Object[] steps) Produces an EXPRESSION object representing a location path
Object	nodeNameTest(Object qname) Produces a NODE_TEST object that represents a node name test.
Object	nodeTypeTest(int nodeType) Produces a NODE_TEST object that represents a node type test.
Object	number(String value) Produces an EXPRESSION object that represents a numeric constant.
Object	qname(String prefix, String tagName) Produces an QNAME that represents a name with an optional prefix.
Object	step(int axis, Object nodeTest, Object[] predicates) Produces a STEP object that represents a node test.

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XPathAbrevCompiler

public XPathAbrevCompiler()

Method Detail

equal

public Object equal(Object left,
           Object right)
             throws ConfException

Description copied from interface: Compiler

Produces an EXPRESSION object representing the comparison: left equals to right

Specified by:

equal in interface Compiler

Parameters:

left - is an EXPRESSION object

right - is an EXPRESSION object

Returns:

Object

Throws:

ConfException

expressionPath

public Object expressionPath(Object expression,
                    Object[] predicates,
                    Object[] steps)

Description copied from interface: Compiler

Produces an EXPRESSION object representing a filter expression

Specified by:

expressionPath in interface Compiler

Parameters:

expression - is an EXPRESSION object

predicates - are EXPRESSION objects

steps - are STEP objects

Returns:

Object

function

public Object function(int code,
              Object[] args)

Description copied from interface: Compiler

Produces an EXPRESSION object representing the computation of a core function with the supplied arguments.

Specified by:

function in interface Compiler

Parameters:

code - is one of FUNCTION_... constants

args - are EXPRESSION objects

Returns:

Object

function

public Object function(Object name,
              Object[] args)

Description copied from interface: Compiler

Produces an EXPRESSION object representing the computation of a library function with the supplied arguments.

Specified by:

function in interface Compiler

Parameters:

name - is a QNAME object (function name)

args - are EXPRESSION objects

Returns:

Object

getKP

public ConfObject[] getKP()

Specified by:

getKP in interface Compiler

literal

public Object literal(String value)

Description copied from interface: Compiler

Produces an EXPRESSION object that represents a string constant.

Specified by:

literal in interface Compiler

Parameters:

value - String literal

Returns:

Object

locationPath

public Object locationPath(boolean absolute,
                  Object[] steps)

Description copied from interface: Compiler

Produces an EXPRESSION object representing a location path

Specified by:

locationPath in interface Compiler

Parameters:

absolute - indicates whether the path is absolute

steps - are STEP objects

Returns:

Object

nodeNameTest

public Object nodeNameTest(Object qname)

Description copied from interface: Compiler

Produces a NODE_TEST object that represents a node name test.

Specified by:

nodeNameTest in interface Compiler

Parameters:

qname - is a QNAME object

Returns:

Object

nodeTypeTest

public Object nodeTypeTest(int nodeType)

Description copied from interface: Compiler

Produces a NODE_TEST object that represents a node type test.

Specified by:

nodeTypeTest in interface Compiler

Parameters:

nodeType - is a NODE_TEST object

Returns:

Object

number

public Object number(String value)

Description copied from interface: Compiler

Produces an EXPRESSION object that represents a numeric constant.

Specified by:

number in interface Compiler

Parameters:

value - numeric String

Returns:

Object

qname

public Object qname(String prefix,
           String tagName)
             throws ConfException

Description copied from interface: Compiler

Produces an QNAME that represents a name with an optional prefix.

Specified by:

qname in interface Compiler

Parameters:

prefix - String prefix

tagName - String name

Returns:

Object

Throws:

ConfException

step

public Object step(int axis,
          Object nodeTest,
          Object[] predicates)

Description copied from interface: Compiler

Produces a STEP object that represents a node test.

Specified by:

step in interface Compiler

Parameters:

axis - is one of the AXIS_... constants

nodeTest - is a NODE_TEST object

predicates - are EXPRESSION objects

Returns:

Object