public final class LikeExpression extends AbstractExpression
The string_expression
must have a string value. The pattern_value
is a
string literal or a string-valued input parameter in which an underscore (_) stands for any
single character, a percent (%) character stands for any sequence of characters (including the
empty sequence), and all other characters stand for themselves. The optional escape_character
is a single-character string literal or a character-valued input parameter (i.e., char or
Character) and is used to escape the special meaning of the underscore and percent characters in
pattern_value
.
like_expression ::= string_expression [NOT] LIKE pattern_value [ESCAPE escape_character]
COMMA, DOT, DOUBLE_QUOTE, LEFT_CURLY_BRACKET, LEFT_PARENTHESIS, NOT_DEFINED, RIGHT_CURLY_BRACKET, RIGHT_PARENTHESIS, SINGLE_QUOTE, SPACE, UNDERSCORE
ABS, ALL, AND, ANY, AS, AS_OF, ASC, AVG, BETWEEN, BIT_LENGTH, BOTH, CASE, CAST, CHAR_LENGTH, CHARACTER_LENGTH, CLASS, COALESCE, COLUMN, CONCAT, CONNECT_BY, COUNT, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, DELETE, DELETE_FROM, DESC, DIFFERENT, DISTINCT, DIVISION, ELSE, EMPTY, END, ENTRY, EQUAL, ESCAPE, EXCEPT, EXISTS, EXTRACT, FALSE, FETCH, FIRST, FROM, FUNC, FUNCTION, GREATER_THAN, GREATER_THAN_OR_EQUAL, GROUP_BY, HAVING, IN, INDEX, INNER, INNER_JOIN, INNER_JOIN_FETCH, INTERSECT, IS, IS_EMPTY, IS_NOT_EMPTY, IS_NOT_NULL, IS_NULL, JOIN, JOIN_FETCH, KEY, LAST, LEADING, LEFT, LEFT_JOIN, LEFT_JOIN_FETCH, LEFT_OUTER_JOIN, LEFT_OUTER_JOIN_FETCH, LENGTH, LIKE, LOCATE, LOWER, LOWER_THAN, LOWER_THAN_OR_EQUAL, MAX, MEMBER, MEMBER_OF, MIN, MINUS, MOD, MULTIPLICATION, NAMED_PARAMETER, NEW, NOT, NOT_BETWEEN, NOT_EQUAL, NOT_EXISTS, NOT_IN, NOT_LIKE, NOT_MEMBER, NOT_MEMBER_OF, NULL, NULLIF, NULLS, NULLS_FIRST, NULLS_LAST, OBJECT, OF, ON, OPERATOR, OR, ORDER_BY, ORDER_SIBLINGS_BY, OUTER, PLUS, POSITION, POSITIONAL_PARAMETER, QUOTE, REGEXP, SCN, SELECT, SET, SIZE, SOME, SQL, SQRT, START_WITH, SUBSTRING, SUM, TABLE, THEN, TIMESTAMP, TRAILING, TREAT, TRIM, TRUE, TYPE, UNION, UNKNOWN, UPDATE, UPPER, VALUE, WHEN, WHERE
Constructor and Description |
---|
LikeExpression(AbstractExpression parent,
AbstractExpression stringExpression)
Creates a new
LikeExpression . |
Modifier and Type | Method and Description |
---|---|
void |
accept(ExpressionVisitor visitor)
Visits this
Expression by the given visitor . |
void |
acceptChildren(ExpressionVisitor visitor)
Visits the children of this
Expression . |
JPQLQueryBNF |
findQueryBNF(Expression expression)
Retrieves the
JPQLQueryBNF that represents the fragment of this Expression
that was used when parsing the given Expression . |
java.lang.String |
getActualEscapeIdentifier()
Returns the actual ESCAPE found in the string representation of the JPQL query, which
has the actual case that was used.
|
java.lang.String |
getActualLikeIdentifier()
Returns the actual LIKE found in the string representation of the JPQL query, which
has the actual case that was used.
|
java.lang.String |
getActualNotIdentifier()
Returns the actual NOT found in the string representation of the JPQL query, which has
the actual case that was used.
|
Expression |
getEscapeCharacter()
Returns the
Expression that represents the escape character, which is either a single
character or an input parameter. |
java.lang.String |
getIdentifier()
Returns the enum constant that represents the identifier.
|
Expression |
getPatternValue()
Returns the
Expression that represents the pattern value. |
JPQLQueryBNF |
getQueryBNF()
Returns the BNF of this
Expression . |
Expression |
getStringExpression()
Returns the
Expression that represents the string expression. |
boolean |
hasEscape()
Determines whether the identifier ESCAPE was parsed.
|
boolean |
hasEscapeCharacter()
Determines whether the escape character was parsed, which is either a single character or an
input parameter.
|
boolean |
hasNot()
Determines whether the identifier NOT was parsed.
|
boolean |
hasPatternValue()
Determines whether the pattern value was parsed.
|
boolean |
hasSpaceAfterEscape()
Determines whether a whitespace was parsed after ESCAPE.
|
boolean |
hasSpaceAfterLike()
Determines whether a whitespace was parsed after LIKE.
|
boolean |
hasSpaceAfterPatternValue()
Determines whether a whitespace was parsed after the pattern value.
|
boolean |
hasSpaceAfterStringExpression()
Determines whether a whitespace was parsed after the string expression.
|
boolean |
hasStringExpression()
Determines whether the string expression was parsed.
|
children, getGrammar, getIdentifierVersion, getLength, getOffset, getParent, getQueryBNF, getRoot, isAncestor, orderedChildren, populatePosition, toActualText, toParsedText, toString
public LikeExpression(AbstractExpression parent, AbstractExpression stringExpression)
LikeExpression
.parent
- The parent of this expressionstringExpression
- The first part of this expression, which is the string expressionpublic void accept(ExpressionVisitor visitor)
Expression
by the given visitor
.visitor
- The ExpressionVisitor
to visit this objectpublic 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.public JPQLQueryBNF findQueryBNF(Expression expression)
JPQLQueryBNF
that represents the fragment of this Expression
that was used when parsing the given Expression
.findQueryBNF
in interface Expression
findQueryBNF
in class AbstractExpression
expression
- The Expression
that is a descendant of this oneJPQLQueryBNF
that was used to parse the given expressionpublic java.lang.String getActualEscapeIdentifier()
public java.lang.String getActualLikeIdentifier()
public java.lang.String getActualNotIdentifier()
public Expression getEscapeCharacter()
Expression
that represents the escape character, which is either a single
character or an input parameter.public java.lang.String getIdentifier()
public Expression getPatternValue()
Expression
that represents the pattern value.public JPQLQueryBNF getQueryBNF()
Expression
.JPQLQueryBNF
, which represents the grammar of this Expression
public Expression getStringExpression()
Expression
that represents the string expression.public boolean hasEscape()
true
if the identifier ESCAPE was parsed; false
otherwisepublic boolean hasEscapeCharacter()
true
if the escape character was parsed; false
otherwisepublic boolean hasNot()
true
if the identifier NOT was parsed; false
otherwisepublic boolean hasPatternValue()
true
if the pattern value was parsed; false
otherwisepublic boolean hasSpaceAfterEscape()
true
if there was a whitespace after ESCAPE; false
otherwisepublic boolean hasSpaceAfterLike()
true
if there was a whitespace after LIKE; false
otherwisepublic boolean hasSpaceAfterPatternValue()
true
if there was a whitespace after the pattern value; false
otherwisepublic boolean hasSpaceAfterStringExpression()
true
if there was a whitespace after the string expression;
false
otherwisepublic boolean hasStringExpression()
true
if the string expression was parsed; false
otherwiseEclipseLink 2.6.3, "build v20160428-59c81c5" API Reference