org.modeshape.jcr.query.xpath
Class XPathParser

java.lang.Object
  org.modeshape.jcr.query.xpath.XPathParser

public class XPathParser
extends Object

A component that parses an XPath query string and creates an abstract syntax tree representation. The supported grammar is defined by JCR 1.0, and is a subset of what is allowed by the W3C XPath 2.0 specification.

Nested Class Summary

static class

XPathParser.XPathTokenizer A TokenStream.Tokenizer implementation that parses single- and double-quoted strings, symbols, words consisting of NCNames (as defined by the Namespaces in XML 1.0 specification), XPath comments,and other single-character tokens.

Constructor Summary

XPathParser(TypeSystem context)

Method Summary

protected XPath.Component	collapse(XPath.Component component)
protected String	decode(String string)
protected XPath.Component	parseAdditiveExpr(TokenStream tokens)
protected XPath.Component	parseAndExpr(TokenStream tokens)
protected XPath.AnyKindTest	parseAnyKindTest(TokenStream tokens)
protected XPath.NameTest	parseAtomicType(TokenStream tokens)
protected XPath.AttributeTest	parseAttributeTest(TokenStream tokens)
protected XPath.AxisStep	parseAxisStep(TokenStream tokens)
protected XPath.Component	parseCastableExpr(TokenStream tokens)
protected XPath.Component	parseCastExpr(TokenStream tokens)
protected XPath.CommentTest	parseCommentTest(TokenStream tokens)
protected XPath.Component	parseComparisonExpr(TokenStream tokens)
protected XPath.ContextItem	parseContextItemExpr(TokenStream tokens)
protected XPath.DocumentTest	parseDocumentTest(TokenStream tokens)
protected XPath.ElementTest	parseElementTest(TokenStream tokens)
protected XPath.Component	parseExpr(TokenStream tokens)
protected XPath.Component	parseExprSingle(TokenStream tokens)
protected XPath.FilterStep	parseFilterExpr(TokenStream tokens)
protected XPath.FunctionCall	parseFunctionCall(TokenStream tokens)
protected Operator	parseGeneralComp(TokenStream tokens)
protected XPath.Component	parseInstanceofExpr(TokenStream tokens)
protected XPath.Component	parseIntersectExceptExpr(TokenStream tokens)
protected XPath.NameTest	parseItemType(TokenStream tokens)
protected XPath.KindTest	parseKindTest(TokenStream tokens)
protected XPath.Component	parseMultiplicativeExpr(TokenStream tokens)
protected XPath.NameTest	parseNameTest(TokenStream tokens)
protected String	parseNCName(TokenStream tokens)
protected XPath.NodeComparisonOperator	parseNodeComp(TokenStream tokens)
protected XPath.NodeTest	parseNodeTest(TokenStream tokens)
protected XPath.Literal	parseNumericLiteral(TokenStream tokens)
protected XPath.OrderBy	parseOrderBy(TokenStream tokens)
protected XPath.OrderBySpec	parseOrderBySpec(TokenStream tokens)
protected XPath.Component	parseOrExpr(TokenStream tokens)
protected XPath.ParenthesizedExpression	parseParenthesizedExpr(TokenStream tokens)
protected XPath.PathExpression	parsePathExpr(TokenStream tokens)
protected XPath.ProcessingInstructionTest	parsePITest(TokenStream tokens)
protected List<XPath.Component>	parsePredicates(TokenStream tokens)
protected XPath.Component	parsePrimaryExpr(TokenStream tokens)
protected XPath.NameTest	parseQName(TokenStream tokens)
protected XPath.Component	parseRangeExpr(TokenStream tokens)
protected XPath.PathExpression	parseRelativePathExpr(TokenStream tokens)
protected XPath.SchemaAttributeTest	parseSchemaAttributeTest(TokenStream tokens)
protected XPath.SchemaElementTest	parseSchemaElementTest(TokenStream tokens)
protected void	parseSequenceType(TokenStream tokens)
protected void	parseSingleType(TokenStream tokens)
protected XPath.StepExpression	parseStepExpr(TokenStream tokens)
protected XPath.Literal	parseStringLiteral(TokenStream tokens)
protected XPath.TextTest	parseTextTest(TokenStream tokens)
protected XPath.Component	parseTreatExpr(TokenStream tokens)
protected XPath.Component	parseUnaryExpr(TokenStream tokens)
protected XPath.Component	parseUnionExpr(TokenStream tokens)
protected XPath.Component	parseValueComp(TokenStream tokens)
protected XPath.Component	parseValueExpr(TokenStream tokens)
protected XPath.NameTest	parseWildcard(TokenStream tokens)
XPath.Component	parseXPath(String xpath)
protected XPath.Component	parseXPath(TokenStream tokens)
protected String	removeQuotes(String text) Remove any leading and trailing single-quotes or double-quotes from the supplied text.

Methods inherited from class java.lang.Object

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

Constructor Detail

XPathParser

public XPathParser(TypeSystem context)

Method Detail

parseXPath

public XPath.Component parseXPath(String xpath)

parseXPath

protected XPath.Component parseXPath(TokenStream tokens)

parseExpr

protected XPath.Component parseExpr(TokenStream tokens)

parseExprSingle

protected XPath.Component parseExprSingle(TokenStream tokens)

parseOrExpr

protected XPath.Component parseOrExpr(TokenStream tokens)

parseAndExpr

protected XPath.Component parseAndExpr(TokenStream tokens)

parseInstanceofExpr

protected XPath.Component parseInstanceofExpr(TokenStream tokens)

parseTreatExpr

protected XPath.Component parseTreatExpr(TokenStream tokens)

parseCastableExpr

protected XPath.Component parseCastableExpr(TokenStream tokens)

parseCastExpr

protected XPath.Component parseCastExpr(TokenStream tokens)

parseComparisonExpr

protected XPath.Component parseComparisonExpr(TokenStream tokens)

parseValueComp

protected XPath.Component parseValueComp(TokenStream tokens)

parseNodeComp

protected XPath.NodeComparisonOperator parseNodeComp(TokenStream tokens)

parseRangeExpr

protected XPath.Component parseRangeExpr(TokenStream tokens)

parseAdditiveExpr

protected XPath.Component parseAdditiveExpr(TokenStream tokens)

parseMultiplicativeExpr

protected XPath.Component parseMultiplicativeExpr(TokenStream tokens)

parseUnaryExpr

protected XPath.Component parseUnaryExpr(TokenStream tokens)

parseUnionExpr

protected XPath.Component parseUnionExpr(TokenStream tokens)

parseIntersectExceptExpr

protected XPath.Component parseIntersectExceptExpr(TokenStream tokens)

parseValueExpr

protected XPath.Component parseValueExpr(TokenStream tokens)

parsePathExpr

protected XPath.PathExpression parsePathExpr(TokenStream tokens)

parseRelativePathExpr

protected XPath.PathExpression parseRelativePathExpr(TokenStream tokens)

parseStepExpr

protected XPath.StepExpression parseStepExpr(TokenStream tokens)

parseAxisStep

protected XPath.AxisStep parseAxisStep(TokenStream tokens)

parsePredicates

protected List<XPath.Component> parsePredicates(TokenStream tokens)

parseFilterExpr

protected XPath.FilterStep parseFilterExpr(TokenStream tokens)

parsePrimaryExpr

protected XPath.Component parsePrimaryExpr(TokenStream tokens)

parseContextItemExpr

protected XPath.ContextItem parseContextItemExpr(TokenStream tokens)

parseParenthesizedExpr

protected XPath.ParenthesizedExpression parseParenthesizedExpr(TokenStream tokens)

parseNumericLiteral

protected XPath.Literal parseNumericLiteral(TokenStream tokens)

parseStringLiteral

protected XPath.Literal parseStringLiteral(TokenStream tokens)

parseFunctionCall

protected XPath.FunctionCall parseFunctionCall(TokenStream tokens)

parseGeneralComp

protected Operator parseGeneralComp(TokenStream tokens)

parseNodeTest

protected XPath.NodeTest parseNodeTest(TokenStream tokens)

parseNameTest

protected XPath.NameTest parseNameTest(TokenStream tokens)

parseQName

protected XPath.NameTest parseQName(TokenStream tokens)

decode

protected String decode(String string)

parseNCName

protected String parseNCName(TokenStream tokens)

parseWildcard

protected XPath.NameTest parseWildcard(TokenStream tokens)

parseItemType

protected XPath.NameTest parseItemType(TokenStream tokens)

parseAtomicType

protected XPath.NameTest parseAtomicType(TokenStream tokens)

parseKindTest

protected XPath.KindTest parseKindTest(TokenStream tokens)

parseAnyKindTest

protected XPath.AnyKindTest parseAnyKindTest(TokenStream tokens)

parsePITest

protected XPath.ProcessingInstructionTest parsePITest(TokenStream tokens)

parseCommentTest

protected XPath.CommentTest parseCommentTest(TokenStream tokens)

parseTextTest

protected XPath.TextTest parseTextTest(TokenStream tokens)

parseDocumentTest

protected XPath.DocumentTest parseDocumentTest(TokenStream tokens)

parseElementTest

protected XPath.ElementTest parseElementTest(TokenStream tokens)

parseSchemaElementTest

protected XPath.SchemaElementTest parseSchemaElementTest(TokenStream tokens)

parseAttributeTest

protected XPath.AttributeTest parseAttributeTest(TokenStream tokens)

parseSchemaAttributeTest

protected XPath.SchemaAttributeTest parseSchemaAttributeTest(TokenStream tokens)

parseSingleType

protected void parseSingleType(TokenStream tokens)

parseSequenceType

protected void parseSequenceType(TokenStream tokens)

parseOrderBy

protected XPath.OrderBy parseOrderBy(TokenStream tokens)

parseOrderBySpec

protected XPath.OrderBySpec parseOrderBySpec(TokenStream tokens)

removeQuotes

protected String removeQuotes(String text)

Remove any leading and trailing single-quotes or double-quotes from the supplied text.

Parameters:

text - the input text; may not be null

Returns:

the text without leading and trailing quotes, or text if there were no square brackets or quotes

collapse

protected XPath.Component collapse(XPath.Component component)