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EclipseLink 2.5.0, build 'v20120919-fd7dc27' API Reference | ||||||||
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java.lang.Objectorg.eclipse.persistence.jpa.jpql.parser.AbstractExpression
org.eclipse.persistence.jpa.jpql.parser.AbstractRangeExpression
public abstract class AbstractRangeExpression
This AbstractRangeExpression
parses an expression that represents a range.
range_expression ::= BETWEEN expression AND expression
Field Summary |
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Fields inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpression |
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COMMA, DOT, DOUBLE_QUOTE, LEFT_CURLY_BRACKET, LEFT_PARENTHESIS, NOT_DEFINED, RIGHT_CURLY_BRACKET, RIGHT_PARENTHESIS, SINGLE_QUOTE, SPACE, UNDERSCORE |
Constructor Summary | |
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protected |
AbstractRangeExpression(AbstractExpression parent,
java.lang.String identifier)
Creates a new AbstractRangeExpression . |
Method Summary | |
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void |
acceptChildren(ExpressionVisitor visitor)
Visits the children of this Expression . |
protected void |
addChildrenTo(java.util.Collection<Expression> children)
Adds the children of this AbstractExpression to the given collection. |
protected void |
addOrderedChildrenTo(java.util.List<Expression> children)
Adds the children of this AbstractExpression to the given list. |
protected abstract java.lang.String |
boundExpressionQueryBNFId()
Returns the unique identifier of the BNF |
java.lang.String |
getActualAndIdentifier()
Returns the actual AND identifier found in the string representation of the JPQL query, which has the actual case that was used. |
java.lang.String |
getActualBetweenIdentifier()
Returns the actual found in the string representation of the JPQL query, which has the actual case that was used. |
Expression |
getLowerBoundExpression()
Returns the Expression representing the lower bound expression. |
Expression |
getUpperBoundExpression()
Returns the Expression representing the upper bound expression. |
boolean |
hasAnd()
Determines whether the identifier AND was part of the query. |
protected boolean |
hasBetween()
Determines whether the identifier BETWEEN was part of the query. |
boolean |
hasLowerBoundExpression()
Determines whether the lower bound expression was parsed. |
boolean |
hasSpaceAfterAnd()
Determines whether a whitespace was found after AND. |
boolean |
hasSpaceAfterBetween()
Determines whether a whitespace was found after BETWEEN. |
boolean |
hasSpaceAfterLowerBound()
Determines whether a whitespace was found after the lower bound expression. |
boolean |
hasUpperBoundExpression()
Determines whether the upper bound expression was parsed. |
protected boolean |
isParsingComplete(WordParser wordParser,
java.lang.String word,
Expression expression)
Determines whether the parsing is complete based on what is left in the given text. |
protected void |
parse(WordParser wordParser,
boolean tolerant)
Parses the query by starting at the current position, which is part of the given WordParser . |
protected void |
parseRange(WordParser wordParser,
boolean tolerant)
Parses the portion of the JPQL query that represents the range . |
protected void |
toParsedRangeText(java.lang.StringBuilder writer,
boolean actual)
Generates a string representation of this the portion that represents the range. |
protected void |
toParsedText(java.lang.StringBuilder writer,
boolean actual)
Generates a string representation of this Expression , including its children,
if it has any. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.eclipse.persistence.jpa.jpql.parser.Expression |
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accept, getQueryBNF |
Constructor Detail |
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protected AbstractRangeExpression(AbstractExpression parent, java.lang.String identifier)
AbstractRangeExpression
.
parent
- The parent of this expressionidentifier
- The JPQL identifier for this expressionMethod Detail |
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public void acceptChildren(ExpressionVisitor visitor)
Expression
. This method can be used to optimize traversing
the children since a new list is not created every time Expression.children()
is called.
This does not traverse the Expression
sub-hierarchy, use a subclass of
AbstractTraverseChildrenVisitor
in order to traverse the entire sub-hierarchy.
visitor
- The visitor
to visit the children of this object.protected void addChildrenTo(java.util.Collection<Expression> children)
AbstractExpression
to the given collection.
addChildrenTo
in class AbstractExpression
children
- The collection used to store the childrenprotected void addOrderedChildrenTo(java.util.List<Expression> children)
AbstractExpression
to the given list.
addOrderedChildrenTo
in class AbstractExpression
children
- The list used to store the string representation of this AbstractExpression
protected abstract java.lang.String boundExpressionQueryBNFId()
public final java.lang.String getActualAndIdentifier()
public final java.lang.String getActualBetweenIdentifier()
public final Expression getLowerBoundExpression()
Expression
representing the lower bound expression.
public Expression getUpperBoundExpression()
Expression
representing the upper bound expression.
public final boolean hasAnd()
true
if the identifier AND was parsed; false
otherwiseprotected boolean hasBetween()
true
if the identifier BETWEEN was parsed; false
otherwisepublic final boolean hasLowerBoundExpression()
true
if the query has the lower bound expression; false
otherwisepublic final boolean hasSpaceAfterAnd()
true
if there was a whitespace after AND; false
otherwisepublic final boolean hasSpaceAfterBetween()
true
if there was a whitespace after the BETWEEN;
false
otherwisepublic final boolean hasSpaceAfterLowerBound()
true
if there was a whitespace after the lower bound expression;
false
otherwisepublic final boolean hasUpperBoundExpression()
true
if the query has the upper bound expression; false
otherwiseprotected boolean isParsingComplete(WordParser wordParser, java.lang.String word, Expression expression)
isParsingComplete
in class AbstractExpression
wordParser
- The text to parse based on the current position of the cursorword
- The word that was retrieved from the given text, which is the first word in the textexpression
- The Expression
that has already been parsed
true
if the text no longer can't be parsed by the current expression;
false
if more can be parsedprotected void parse(WordParser wordParser, boolean tolerant)
WordParser
.
parse
in class AbstractExpression
wordParser
- The text to parse based on the current position of the cursortolerant
- Determines whether the parsing system should be tolerant, meaning if it should
try to parse invalid or incomplete queriesprotected void parseRange(WordParser wordParser, boolean tolerant)
wordParser
- The text to parse based on the current position of the cursortolerant
- Determines whether the parsing system should be tolerant, meaning if it should
try to parse invalid or incomplete queriesprotected void toParsedRangeText(java.lang.StringBuilder writer, boolean actual)
writer
- The buffer used to append this Expression
's string representationactual
- Determines whether the string representation should represent what was parsed,
i.e. include any "virtual" whitespace (such as ending whitespace) and the actual case of the
JPQL identifiersprotected void toParsedText(java.lang.StringBuilder writer, boolean actual)
Expression
, including its children,
if it has any.
toParsedText
in class AbstractExpression
writer
- The buffer used to append this Expression
's string representationactual
- Determines whether the string representation should represent what was parsed,
i.e. include any "virtual" whitespace (such as ending whitespace) and the actual case of the
JPQL identifiers
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EclipseLink 2.5.0, build 'v20120919-fd7dc27' API Reference | ||||||||
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