Examples with StandardTableGroup org.hibernate.sql.ast.tree.from.StandardTableGroup used on opensource projects

Example 1 with StandardTableGroup

use of org.hibernate.sql.ast.tree.from.StandardTableGroup in project hibernate-orm by hibernate.

the class InformixSqmToSqlAstConverter method visitQuerySpec.

@Override
public QuerySpec visitQuerySpec(SqmQuerySpec<?> sqmQuerySpec) {
    final boolean needsDummy = this.needsDummyTableGroup;
    this.needsDummyTableGroup = false;
    try {
        final QuerySpec querySpec = super.visitQuerySpec(sqmQuerySpec);
        if (this.needsDummyTableGroup) {
            querySpec.getFromClause().addRoot(new StandardTableGroup(true, null, null, null, new NamedTableReference("(select 1)", "dummy_(x)", false, getCreationContext().getSessionFactory()), null, getCreationContext().getSessionFactory()));
        }
        return querySpec;
    } finally {
        this.needsDummyTableGroup = needsDummy;
    }
}

Example 2 with StandardTableGroup

use of org.hibernate.sql.ast.tree.from.StandardTableGroup in project hibernate-orm by hibernate.

the class SybaseSqmToSqlAstConverter method visitQuerySpec.

@Override
public QuerySpec visitQuerySpec(SqmQuerySpec<?> sqmQuerySpec) {
    final boolean needsDummy = this.needsDummyTableGroup;
    this.needsDummyTableGroup = false;
    try {
        final QuerySpec querySpec = super.visitQuerySpec(sqmQuerySpec);
        if (this.needsDummyTableGroup) {
            querySpec.getFromClause().addRoot(new StandardTableGroup(true, null, null, null, new NamedTableReference("(select 1)", "dummy_(x)", false, getCreationContext().getSessionFactory()), null, getCreationContext().getSessionFactory()));
        }
        return querySpec;
    } finally {
        this.needsDummyTableGroup = needsDummy;
    }
}

Example 3 with StandardTableGroup

use of org.hibernate.sql.ast.tree.from.StandardTableGroup in project hibernate-orm by hibernate.

the class IngresSqmToSqlAstConverter method visitQuerySpec.

@Override
public QuerySpec visitQuerySpec(SqmQuerySpec<?> sqmQuerySpec) {
    final boolean needsDummy = this.needsDummyTableGroup;
    this.needsDummyTableGroup = false;
    try {
        final QuerySpec querySpec = super.visitQuerySpec(sqmQuerySpec);
        if (this.needsDummyTableGroup) {
            querySpec.getFromClause().addRoot(new StandardTableGroup(true, null, null, null, new NamedTableReference("(select 1)", "dummy_(x)", false, getCreationContext().getSessionFactory()), null, getCreationContext().getSessionFactory()));
        }
        return querySpec;
    } finally {
        this.needsDummyTableGroup = needsDummy;
    }
}

Example 4 with StandardTableGroup

use of org.hibernate.sql.ast.tree.from.StandardTableGroup in project hibernate-orm by hibernate.

the class ExecuteWithoutIdTableHelper method createIdMatchingSubQuerySpec.

public static QuerySpec createIdMatchingSubQuerySpec(NavigablePath navigablePath, TableReference rootTableReference, Predicate predicate, EntityPersister rootEntityPersister, SqlExpressionResolver sqlExpressionResolver, SessionFactoryImplementor sessionFactory) {
    /*
		 * `select root_id from root_table where {predicate}
		 */
    final QuerySpec matchingIdSelect = new QuerySpec(false, 1);
    final StandardTableGroup matchingIdSelectTableGroup = new StandardTableGroup(true, navigablePath, rootEntityPersister, rootTableReference.getIdentificationVariable(), rootTableReference, null, sessionFactory);
    matchingIdSelect.getFromClause().addRoot(matchingIdSelectTableGroup);
    rootEntityPersister.getIdentifierMapping().forEachSelectable((columnIndex, selection) -> {
        final ColumnReference columnReference = (ColumnReference) sqlExpressionResolver.resolveSqlExpression(SqlExpressionResolver.createColumnReferenceKey(rootTableReference, selection.getSelectionExpression()), sqlAstProcessingState -> new ColumnReference(rootTableReference, selection, sessionFactory));
        final SqlSelection sqlSelection = new SqlSelectionImpl(// irrelevant
        0, 0, columnReference);
        matchingIdSelect.getSelectClause().addSqlSelection(sqlSelection);
    });
    matchingIdSelect.applyPredicate(predicate);
    return matchingIdSelect;
}

Example 5 with StandardTableGroup

use of org.hibernate.sql.ast.tree.from.StandardTableGroup in project hibernate-orm by hibernate.

the class ExecuteWithTemporaryTableHelper method createIdTableSelectQuerySpec.

public static QuerySpec createIdTableSelectQuerySpec(TemporaryTable idTable, ModelPart fkModelPart, Function<SharedSessionContractImplementor, String> sessionUidAccess, EntityMappingType entityDescriptor, ExecutionContext executionContext) {
    final QuerySpec querySpec = new QuerySpec(false);
    final NamedTableReference idTableReference = new NamedTableReference(idTable.getTableExpression(), TemporaryTable.DEFAULT_ALIAS, true, executionContext.getSession().getFactory());
    final TableGroup idTableGroup = new StandardTableGroup(true, new NavigablePath(idTableReference.getTableExpression()), entityDescriptor, null, idTableReference, null, executionContext.getSession().getFactory());
    querySpec.getFromClause().addRoot(idTableGroup);
    applyIdTableSelections(querySpec, idTableReference, idTable, fkModelPart, executionContext);
    applyIdTableRestrictions(querySpec, idTableReference, idTable, sessionUidAccess, executionContext);
    return querySpec;
}