Spring Expression Language (SpEL) 6.1.4 · org.springframework.expression.spel.standard.InternalSpelExpressionParser

Modifier and Type	Field and Description
private final SpelParserConfiguration	configuration
private final Deque<SpelNodeImpl>	constructedNodes
private String	expressionString
private final ConcurrentMap<String, Pattern>	patternCache
private List<Token>	tokenStream
private int	tokenStreamLength
private int	tokenStreamPointer
private static final Pattern	VALID_QUALIFIED_ID_PATTERN

Access	Constructor and Description
public	InternalSpelExpressionParser(SpelParserConfiguration custom configuration options configuration) Create a parser with some configured behavior.

Method Summary

Modifier and Type	Method and Description
private void	checkExpressionLength(String string)
private void	checkLeftOperand(Token token, SpelNodeImpl operandExpression)
private void	checkOperands(Token token, SpelNodeImpl left, SpelNodeImpl right)
private void	checkRightOperand(Token token, SpelNodeImpl operandExpression)
private void	consumeArguments(List<SpelNodeImpl> accumulatedArguments) Used for consuming arguments for either a method or a constructor call.
protected SpelExpression	doParseExpression(String the raw expression string to parse expressionString, ParserContext a context for influencing this expression parsing routine (optional) context) Implements abstract org.springframework.expression.common.TemplateAwareExpressionParser.doParseExpression. Actually parse the expression string and return an Expression object.
private void	eatConstructorArgs(List<SpelNodeImpl> accumulatedArguments)
private SpelNodeImpl	eatDottedNode()
private SpelNodeImpl	eatExpression()
private SpelNodeImpl	eatLogicalAndExpression()
private SpelNodeImpl	eatLogicalOrExpression()
private SpelNodeImpl	eatNode()
private SpelNodeImpl	eatNonDottedNode()
private SpelNodeImpl	eatPossiblyQualifiedId() Eat an identifier, possibly qualified (meaning that it is dotted).
private SpelNodeImpl	eatPowerIncDecExpression()
private SpelNodeImpl	eatPrimaryExpression()
private SpelNodeImpl	eatProductExpression()
private SpelNodeImpl	eatRelationalExpression()
private SpelNodeImpl	eatStartNode()
private SpelNodeImpl	eatSumExpression()
private Token	eatToken(TokenKind expectedKind)
private SpelNodeImpl	eatUnaryExpression()
private InternalParseException	internalException(int startPos, SpelMessage message, Object... inserts)
private boolean	isValidQualifiedId(Token node)
private boolean	maybeEatBeanReference()
private boolean	maybeEatConstructorReference()
private boolean	maybeEatFunctionOrVar()
private boolean	maybeEatIndexer()
private boolean	maybeEatInlineListOrMap()
private boolean	maybeEatLiteral()
private SpelNodeImpl[]	maybeEatMethodArgs()
private boolean	maybeEatMethodOrProperty(boolean nullSafeNavigation)
private boolean	maybeEatNullReference()
private boolean	maybeEatParenExpression()
private boolean	maybeEatProjection(boolean nullSafeNavigation)
private Token	maybeEatRelationalOperator()
private boolean	maybeEatSelection(boolean nullSafeNavigation)
private boolean	maybeEatTypeReference()
private Token	nextToken()
private boolean	peekIdentifierToken(String identifierString)
private boolean	peekSelectToken()
private boolean	peekToken(TokenKind desiredTokenKind)
private boolean	peekToken(TokenKind desiredTokenKind, boolean consumeIfMatched)
private boolean	peekToken(TokenKind possible1, TokenKind possible2)
private boolean	peekToken(TokenKind possible1, TokenKind possible2, TokenKind possible3)
private Token	peekToken()
private SpelNodeImpl	pop()
private int	positionOf(Token t)
private void	push(SpelNodeImpl newNode)
private Token	takeToken()
public String	toString(Token t)

Inherited from org.springframework.expression.common.TemplateAwareExpressionParser:: parseExpression parseExpression

configuration	back to summary
private final SpelParserConfiguration configuration

constructedNodes	back to summary
private final Deque<SpelNodeImpl> constructedNodes

expressionString	back to summary
private String expressionString

patternCache	back to summary
private final ConcurrentMap<String, Pattern> patternCache

tokenStream	back to summary
private List<Token> tokenStream

tokenStreamLength	back to summary
private int tokenStreamLength

tokenStreamPointer	back to summary
private int tokenStreamPointer

VALID_QUALIFIED_ID_PATTERN	back to summary
private static final Pattern VALID_QUALIFIED_ID_PATTERN

InternalSpelExpressionParser	back to summary
public InternalSpelExpressionParser(SpelParserConfiguration configuration) Create a parser with some configured behavior. Parameters configuration:SpelParserConfiguration custom configuration options

Method Detail

checkExpressionLength	back to summary
private void checkExpressionLength(String string)

checkLeftOperand	back to summary
private void checkLeftOperand(Token token, SpelNodeImpl operandExpression)

checkOperands	back to summary
private void checkOperands(Token token, SpelNodeImpl left, SpelNodeImpl right)

checkRightOperand	back to summary
private void checkRightOperand(Token token, SpelNodeImpl operandExpression)

consumeArguments	back to summary
private void consumeArguments(List<SpelNodeImpl> accumulatedArguments) Used for consuming arguments for either a method or a constructor call.

doParseExpression	back to summary
protected SpelExpression doParseExpression(String expressionString, ParserContext context) throws ParseException Implements abstract org.springframework.expression.common.TemplateAwareExpressionParser.doParseExpression. Doc from org.springframework.expression.common.TemplateAwareExpressionParser.doParseExpression. Actually parse the expression string and return an Expression object. Parameters expressionString:String the raw expression string to parse context:ParserContext a context for influencing this expression parsing routine (optional) Returns:SpelExpression an evaluator for the parsed expression Annotations @Override Exceptions ParseException: an exception occurred during parsing

doParseExpression

back to summary

protected SpelExpression doParseExpression(String expressionString, ParserContext context) throws ParseException

Implements abstract org.springframework.expression.common.TemplateAwareExpressionParser.doParseExpression.

Doc from org.springframework.expression.common.TemplateAwareExpressionParser.doParseExpression.

Actually parse the expression string and return an Expression object.

Parameters

expressionString:String: the raw expression string to parse
context:ParserContext: a context for influencing this expression parsing routine (optional)

Returns:SpelExpression

an evaluator for the parsed expression

Annotations

@Override

Exceptions

ParseException:: an exception occurred during parsing

eatConstructorArgs	back to summary
private void eatConstructorArgs(List<SpelNodeImpl> accumulatedArguments)

eatDottedNode	back to summary
private SpelNodeImpl eatDottedNode()

eatExpression	back to summary
private SpelNodeImpl eatExpression() Annotations @Nullable

eatLogicalAndExpression	back to summary
private SpelNodeImpl eatLogicalAndExpression() Annotations @Nullable

eatLogicalOrExpression	back to summary
private SpelNodeImpl eatLogicalOrExpression() Annotations @Nullable

eatNode	back to summary
private SpelNodeImpl eatNode() Annotations @Nullable

eatNonDottedNode	back to summary
private SpelNodeImpl eatNonDottedNode() Annotations @Nullable

eatPossiblyQualifiedId	back to summary
private SpelNodeImpl eatPossiblyQualifiedId() Eat an identifier, possibly qualified (meaning that it is dotted). TODO AndyC Could create complete identifiers (a.b.c) here rather than a sequence of them? (a, b, c)

eatPowerIncDecExpression	back to summary
private SpelNodeImpl eatPowerIncDecExpression() Annotations @Nullable

eatPrimaryExpression	back to summary
private SpelNodeImpl eatPrimaryExpression() Annotations @Nullable

eatProductExpression	back to summary
private SpelNodeImpl eatProductExpression() Annotations @Nullable

eatRelationalExpression	back to summary
private SpelNodeImpl eatRelationalExpression() Annotations @Nullable

eatStartNode	back to summary
private SpelNodeImpl eatStartNode() Annotations @Nullable

eatSumExpression	back to summary
private SpelNodeImpl eatSumExpression() Annotations @Nullable

eatToken	back to summary
private Token eatToken(TokenKind expectedKind)

eatUnaryExpression	back to summary
private SpelNodeImpl eatUnaryExpression() Annotations @Nullable

internalException	back to summary
private InternalParseException internalException(int startPos, SpelMessage message, Object... inserts)

isValidQualifiedId	back to summary
private boolean isValidQualifiedId(Token node)

maybeEatBeanReference	back to summary
private boolean maybeEatBeanReference()

maybeEatConstructorReference	back to summary
private boolean maybeEatConstructorReference()

maybeEatFunctionOrVar	back to summary
private boolean maybeEatFunctionOrVar()

maybeEatIndexer	back to summary
private boolean maybeEatIndexer()

maybeEatInlineListOrMap	back to summary
private boolean maybeEatInlineListOrMap()

maybeEatLiteral	back to summary
private boolean maybeEatLiteral()

maybeEatMethodArgs	back to summary
private SpelNodeImpl[] maybeEatMethodArgs() Annotations @Nullable

maybeEatMethodOrProperty	back to summary
private boolean maybeEatMethodOrProperty(boolean nullSafeNavigation)

maybeEatNullReference	back to summary
private boolean maybeEatNullReference()

maybeEatParenExpression	back to summary
private boolean maybeEatParenExpression()

maybeEatProjection	back to summary
private boolean maybeEatProjection(boolean nullSafeNavigation)

maybeEatRelationalOperator	back to summary
private Token maybeEatRelationalOperator() Annotations @Nullable

maybeEatSelection	back to summary
private boolean maybeEatSelection(boolean nullSafeNavigation)

maybeEatTypeReference	back to summary
private boolean maybeEatTypeReference()

nextToken	back to summary
private Token nextToken() Annotations @Nullable

peekIdentifierToken	back to summary
private boolean peekIdentifierToken(String identifierString)

peekSelectToken	back to summary
private boolean peekSelectToken()

peekToken	back to summary
private boolean peekToken(TokenKind desiredTokenKind)

peekToken	back to summary
private boolean peekToken(TokenKind desiredTokenKind, boolean consumeIfMatched)

peekToken	back to summary
private boolean peekToken(TokenKind possible1, TokenKind possible2)

peekToken	back to summary
private boolean peekToken(TokenKind possible1, TokenKind possible2, TokenKind possible3)

peekToken	back to summary
private Token peekToken() Annotations @Nullable

pop	back to summary
private SpelNodeImpl pop()

positionOf	back to summary
private int positionOf(Token t)

push	back to summary
private void push(SpelNodeImpl newNode)

takeToken	back to summary
private Token takeToken()

toString	back to summary
public String toString(Token t)

pack-priv Class InternalSpelExpressionParser

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail