This JPQLGrammar provides support for parsing JPQL queries defined in JSR-338 - Java Persistence 2.1 and the additional
support provided by EclipseLink 2.4.
select_statement ::= select_clause from_clause [where_clause] [groupby_clause] [having_clause] [orderby_clause] {union_clause}*
union_clause ::= { UNION | INTERSECT | EXCEPT} [ALL] subquery
from_clause ::= FROM identification_variable_declaration {, {identification_variable_declaration |
collection_member_declaration |
(subquery) |
table_variable_declaration }}*
range_variable_declaration ::= root_object [AS] identification_variable
root_object ::= abstract_schema_name | fully_qualified_class_name
table_variable_declaration ::= table_expression [AS] identification_variable
join ::= join_spec { abstract_schema_name | join_association_path_expression } [AS] identification_variable [join_condition]
functions_returning_datetime ::= cast_expression |
extract_expression |
...
functions_returning_string ::= cast_expression |
extract_expression |
...
functions_returning_numeric ::= cast_expression |
extract_expression |
...
simple_cond_expression ::= regexp_expression |
...
function_expression ::= { FUNC | FUNCTION | OPERATOR | SQL | COLUMN } (string_literal {, function_arg}*)
regexp_expression ::= string_expression REGEXP pattern_value
extract_expression ::= EXTRACT(date_part_literal [FROM] scalar_expression)
table_expression ::= TABLE(string_literal)
date_part_literal ::= { MICROSECOND | SECOND | MINUTE | HOUR | DAY | WEEK | MONTH | QUARTER |
YEAR | SECOND_MICROSECOND | MINUTE_MICROSECOND | MINUTE_SECOND |
HOUR_MICROSECOND | HOUR_SECOND | HOUR_MINUTE | DAY_MICROSECOND |
DAY_SECOND | DAY_MINUTE | DAY_HOUR | YEAR_MONTH, etc }
cast_expression ::= CAST(scalar_expression [AS] database_type)
database_type ::= data_type_literal [( [numeric_literal [, numeric_literal]] )]
data_type_literal ::= [CHAR, VARCHAR, NUMERIC, INTEGER, DATE, TIME, TIMESTAMP, etc]Provisional API: This interface is part of an interim API that is still under development and expected to change significantly before reaching stability. It is available at this early stage to solicit feedback from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken (repeatedly) as the API evolves.
| Modifier and Type | Field and Description |
|---|---|
| private static final JPQLGrammar | INSTANCE
The singleton instance of this |
| public static final EclipseLinkVersion | VERSION
The EclipseLink version, which is 2.4. |
| Access | Constructor and Description |
|---|---|
| public | |
| private | EclipseLinkJPQLGrammar2_4(AbstractJPQLGrammar
The jpqlGrammar)JPQLGrammar to extend with the content of this one without
instantiating the base JPQLGrammarCreates a new |
| Modifier and Type | Method and Description |
|---|---|
| protected JPQLGrammar | buildBaseGrammar()
Implements abstract org. JPQLGrammar this one extends, if one exists.
|
| public static void | extend(AbstractJPQLGrammar
The jpqlGrammar)JPQLGrammar to extend with the content of this one without
instantiating the base JPQLGrammarExtends the given |
| public JPAVersion | getJPAVersion()
Implements org. JPAVersion of the Java Persistence supported by this grammar.
|
| public String | getProvider()
Implements org. |
| public String | getProviderVersion()
Implements org. |
| protected void | initializeBNFs()
Implements abstract org. |
| protected void | initializeExpressionFactories()
Implements abstract org. ExpressionFactories required to properly parse JPQL
queries.
|
| protected void | initializeIdentifiers()
Implements abstract org. JPQLGrammar.
|
| public static JPQLGrammar | Returns: The singleton instance ofEclipseLinkJPQLGrammar2_4Returns the singleton instance of this class. |
| public String |
| INSTANCE | back to summary |
|---|---|
| private static final JPQLGrammar INSTANCE The singleton instance of this | |
| VERSION | back to summary |
|---|---|
| public static final EclipseLinkVersion VERSION The EclipseLink version, which is 2.4. | |
| EclipseLinkJPQLGrammar2_4 | back to summary |
|---|---|
| public EclipseLinkJPQLGrammar2_4() Creates a new | |
| EclipseLinkJPQLGrammar2_4 | back to summary |
|---|---|
| private EclipseLinkJPQLGrammar2_4(AbstractJPQLGrammar jpqlGrammar) Creates a new
| |
| buildBaseGrammar | back to summary |
|---|---|
| protected JPQLGrammar buildBaseGrammar() Implements abstract org. Doc from org. Creates the base Important Note The singleton instance of any
| |
| extend | back to summary |
|---|---|
| public static void extend(AbstractJPQLGrammar jpqlGrammar) Extends the given
| |
| getJPAVersion | back to summary |
|---|---|
| public JPAVersion getJPAVersion() Implements org. Doc from org. Returns the
| |
| getProvider | back to summary |
|---|---|
| public String getProvider() Implements org. Doc from org. Returns the persistence provider name. | |
| getProviderVersion | back to summary |
|---|---|
| public String getProviderVersion() Implements org. Doc from org. Returns the version of the persistence provider. | |
| initializeBNFs | back to summary |
|---|---|
| protected void initializeBNFs() Implements abstract org. Doc from org. Registers the JPQL query BNFs defining the JPQL grammar.
| |
| initializeExpressionFactories | back to summary |
|---|---|
| protected void initializeExpressionFactories() Implements abstract org. Doc from org. Registers the
| |
| initializeIdentifiers | back to summary |
|---|---|
| protected void initializeIdentifiers() Implements abstract org. Doc from org. Registers the JPQL identifiers support by this
| |
| instance | back to summary |
|---|---|
| public static JPQLGrammar instance() Returns the singleton instance of this class.
| |
| toString | back to summary |
|---|---|
| public String toString() Overrides java. Doc from java. Returns a string representation of the object. | |