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See:
Description
| Interface Summary | |
|---|---|
| Expr | |
| ExprBoolean | |
| ExprNumeric | |
| Node | |
| TriQLParserConstants | |
| TriQLParserTreeConstants | |
| Class Summary | |
|---|---|
| ConstraintExpr | |
| JavaCharStream | An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (with java-like unicode escape processing). |
| ParsedLiteral | |
| Q_Add | |
| Q_ArgList | |
| Q_BitAnd | |
| Q_BitOr | |
| Q_BitXor | |
| Q_BooleanLiteral | |
| Q_ConstraintClause | |
| Q_CountExpression | |
| Q_Divide | |
| Q_Equal | |
| Q_FunctionCall | |
| Q_GraphPattern | |
| Q_GraphPatternClause | |
| Q_GreaterThan | |
| Q_GreaterThanOrEqual | |
| Q_Identifier | |
| Q_LeftShift | |
| Q_LessThan | |
| Q_LessThanOrEqual | |
| Q_LogicalAnd | |
| Q_LogicalOr | |
| Q_Modulus | |
| Q_Multiply | |
| Q_NotEqual | |
| Q_NullLiteral | |
| Q_NumericLiteral | |
| Q_PatternLiteral | |
| Q_PrefixDecl | |
| Q_PrefixesClause | |
| Q_QName | |
| Q_Query | Concrete result of parsing a query. |
| Q_QuotedURI | |
| Q_RightSignedShift | |
| Q_RightUnsignedShift | |
| Q_SelectClause | |
| Q_SourceClause | |
| Q_SourceSelector | |
| Q_String | |
| Q_StringEqual | |
| Q_StringMatch | |
| Q_StringNoMatch | |
| Q_StringNotEqual | |
| Q_Subtract | |
| Q_TextLiteral | |
| Q_TriplePattern | |
| Q_UnaryMinus | |
| Q_UnaryNot | |
| Q_UnaryPlus | |
| Q_URI | |
| Q_URL | |
| Q_Var | |
| SimpleNode | |
| Token | Describes the input token stream. |
| TriQLParser | |
| TriQLParserTokenManager | |
| Exception Summary | |
|---|---|
| ParseException | This exception is thrown when parse errors are encountered. |
| Error Summary | |
|---|---|
| TokenMgrError | |
A TriQL parser. It is based on Jena's RDQL parser.
The parser is generated by the JJTree/JavaCC tool.
Most classes are boilerplate code that was automatically generated. The package mixes completely auto-generated classes and hand-edited code.
triql.jjt contains the JJTree grammar. triql.jj is generated from that automatically by the JJTree tool. The JavaCC tool generates some of the Java files in this package from triql.jj.
The parser creates a parse tree for the query. The Q_Query class is the root node. Its buildQuery method grabs all the interesting stuff from the tree and puts it into a TriQLQuery object. Only the constraints (AND clauses) are left in parse tree form.
The TriQLQuery object is then used by the query engine.
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