Examples of org.apache.chemistry.opencmis.server.support.query.QueryObject

Package org.apache.chemistry.opencmis.server.support.query

Examples of org.apache.chemistry.opencmis.server.support.query.QueryObject

org.apache.chemistry.opencmis.server.support.query.QueryObject
QueryObject is a class used to encapsulate a CMIS query. It is created from an ANTLR parser on an incoming query string. During parsing various informations are collected and stored in objects suitable for evaluating the query (like selected properties, effected types and order statements. A query evaluator can use this information to perform the query and build the result.

    
    @Test
    public void simpleFromTest2() throws Exception {
        String statement = "SELECT * FROM MyType";        
        CmisQueryWalker walker = traverseStatementAndCatchExc(statement);
        QueryObject from = walker.queryObj;
        Map<String,String> types = from.getTypes();
        assertTrue(1 == types.size());
        String key = types.keySet().iterator().next();
        assertEquals("MyType", key);
        assertEquals("MyType", types.get(key));

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    @Test
    public void simpleFromTest3() throws Exception {
        String statement = "SELECT t2.aaa FROM MyType abc123";        
        CmisQueryWalker walker = traverseStatementAndCatchExc(statement);
        QueryObject from = walker.queryObj;
        Map<String,String> types = from.getTypes();
        assertTrue(1 == types.size());
        String key = types.keySet().iterator().next();
        assertEquals("abc123", key);
        assertEquals("MyType", types.get(key));
    }

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    @Test
    public void simpleWhereTest() throws Exception {
        String statement = "SELECT * FROM MyType WHERE MyProp1=123"; 
        
        CmisQueryWalker walker = traverseStatementAndCatchExc(statement);
        QueryObject qo = walker.queryObj;
        List<CmisSelector> whereRefs = qo.getWhereReferences();
        Map<Integer, CmisSelector> colRefs = qo.getColumnReferences();
        assertTrue(1 == whereRefs.size());
        CmisSelector value = whereRefs.iterator().next();
        assertTrue(value instanceof ColumnReference);
        assertEquals("MyProp1", ((ColumnReference)value).getPropertyQueryName());
        // only "*" should be in select references
        assertTrue(1 == qo.getSelectReferences().size());


        CommonTree tree = (CommonTree) walker.getTreeNodeStream().getTreeSource();
        
        // System.out.println("simpleWhereTest printing Tree ...");
        // System.out.println("id in map: " + System.identityHashCode(whereRefs.keySet().iterator().next()));

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    @Test
    public void doubleFromTest() throws Exception {
        String statement = "SELECT * FROM MyType JOIN YourType WHERE a='1'"; 
        
        CmisQueryWalker walker = traverseStatementAndCatchExc(statement);
        QueryObject from = walker.queryObj;
        Map<String,String> types = from.getTypes();
        assertTrue(2 == types.size());
    }

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        List<TypeDefinition> typeDefs = super.createTypes();
        for (TypeDefinition typeDef : typeDefs)
            tm.addTypeDefinition(typeDef);
        
        // initialize query object with type manager
        super.setUp(new QueryObject(tm, null));
    }

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        verifyResolveSelect(statement);
    }


    private void verifyResolveSelect(String statement) throws Exception {
        CmisQueryWalker walker = traverseStatement(statement);
        QueryObject qo = walker.queryObj;
        Map<String,String> types = qo.getTypes();
        assertTrue(1 == types.size());
        List<CmisSelector> selects = qo.getSelectReferences();
        assertTrue(2 == selects.size());
        for (CmisSelector select : selects) {
            assertTrue(select instanceof ColumnReference);
            ColumnReference colRef = ((ColumnReference) select);
            assertEquals(bookType, colRef.getTypeDefinition());

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    @Test
    public void resolveTypesWithTwoFromsQualified() throws Exception {
        String statement = "SELECT BookType.Title, MyDocType.MyStringProp FROM BookType JOIN MyDocType WHERE BookType.ISBN = '100'"; 
        
        CmisQueryWalker walker = traverseStatement(statement);
        QueryObject qo = walker.queryObj;
        Map<String,String> types = qo.getTypes();
        assertTrue(2 == types.size());
        List<CmisSelector> selects = qo.getSelectReferences();
        assertTrue(2 == selects.size());


        ColumnReference colRef = ((ColumnReference) selects.get(0));
        assertEquals(colRef.getTypeDefinition(), bookType);
        assertTrue(colRef.getPropertyQueryName().equals(TITLE_PROP));

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    @Test
    public void resolveTypesWithTwoFromsUnqualified() throws Exception {
        String statement = "SELECT Title, MyStringProp FROM BookType JOIN MyDocType AS MyDocAlias WHERE BookType.ISBN = '100'"; 
        
        CmisQueryWalker walker = traverseStatement(statement);
        QueryObject qo = walker.queryObj;
        Map<String,String> types = qo.getTypes();
        assertTrue(2 == types.size());
        List<CmisSelector> selects = qo.getSelectReferences();
        assertTrue(2 == selects.size());


        ColumnReference colRef = ((ColumnReference) selects.get(0));
        assertEquals(colRef.getTypeDefinition(), bookType);
        assertTrue(colRef.getPropertyQueryName().equals(TITLE_PROP));

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    @Test
    public void resolveTypesWithTwoFromsUniqueByQualifying() throws Exception {
        String statement = "SELECT MyDocType.MyStringProp FROM MyDocTypeCopy JOIN MyDocType"; 
        
        CmisQueryWalker walker = traverseStatement(statement);
        QueryObject qo = walker.queryObj;
        Map<String,String> types = qo.getTypes();
        assertTrue(2 == types.size());
        List<CmisSelector> selects = qo.getSelectReferences();
        assertTrue(1 == selects.size());
        ColumnReference colRef = ((ColumnReference) selects.get(0));
        assertEquals(myType, colRef.getTypeDefinition());
        assertTrue(colRef.getPropertyQueryName().equals(STRING_PROP));        
    }

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    @Test
    public void resolveTypesTest11() throws Exception {
        String statement = "SELECT BookType.* FROM BookType WHERE ISBN = '100'"; 
        CmisQueryWalker walker = traverseStatement(statement);
        QueryObject qo = walker.queryObj;
        Map<String,String> types = qo.getTypes();
        assertTrue(1 == types.size());
        List<CmisSelector> selects = qo.getSelectReferences();
        assertTrue(1 == selects.size());
        ColumnReference colRef = ((ColumnReference) selects.get(0));
        assertTrue(colRef.getPropertyQueryName().equals("*"));        
        assertEquals(bookType, colRef.getTypeDefinition());
    }

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