org.teiid.query.sql.lang.Query.setGroupBy()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中org.teiid.query.sql.lang.Query.setGroupBy方法的一些代码示例，展示了Query.setGroupBy的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Query.setGroupBy方法的具体详情如下：
包路径：org.teiid.query.sql.lang.Query
类名称：Query
方法名：setGroupBy

Query.setGroupBy介绍

[英]Set the group by clause for the query.
[中]为查询设置group by子句。

代码示例

代码示例来源：origin: org.teiid/teiid-engine

private Query rewriteGroupBy(Query query) throws TeiidComponentException, TeiidProcessingException {
  if (query.getGroupBy() == null) {
    rewriteAggs = false;
    return query;
  }
  if (isDistinctWithGroupBy(query)) {
    query.getSelect().setDistinct(false);
  }
  rewriteExpressions(query.getGroupBy());
  List<Expression> expr = query.getGroupBy().getSymbols();
  for (Iterator<Expression> iter = expr.iterator(); iter.hasNext();) {
    if (EvaluatableVisitor.willBecomeConstant(iter.next())) {
      iter.remove();
    }
  }
  if (expr.isEmpty()) {
    query.setGroupBy(null);
  }
  return query;
}

代码示例来源：origin: org.jboss.teiid/teiid-engine

private Query rewriteGroupBy(Query query) throws TeiidComponentException, TeiidProcessingException {
  if (query.getGroupBy() == null) {
    rewriteAggs = false;
    return query;
  }
  if (isDistinctWithGroupBy(query)) {
    query.getSelect().setDistinct(false);
  }
  rewriteExpressions(query.getGroupBy());
  List<Expression> expr = query.getGroupBy().getSymbols();
  for (Iterator<Expression> iter = expr.iterator(); iter.hasNext();) {
    if (EvaluatableVisitor.willBecomeConstant(iter.next())) {
      iter.remove();
    }
  }
  if (expr.isEmpty()) {
    query.setGroupBy(null);
  }
  return query;
}

代码示例来源：origin: teiid/teiid

private Query rewriteGroupBy(Query query) throws TeiidComponentException, TeiidProcessingException {
  if (query.getGroupBy() == null) {
    rewriteAggs = false;
    return query;
  }
  if (isDistinctWithGroupBy(query)) {
    query.getSelect().setDistinct(false);
  }
  rewriteExpressions(query.getGroupBy());
  List<Expression> expr = query.getGroupBy().getSymbols();
  for (Iterator<Expression> iter = expr.iterator(); iter.hasNext();) {
    if (EvaluatableVisitor.willBecomeConstant(iter.next())) {
      iter.remove();
    }
  }
  if (expr.isEmpty()) {
    query.setGroupBy(null);
  }
  return query;
}

代码示例来源：origin: org.jboss.teiid/teiid-engine

/**
 * Constructs an instance of this class given all the clauses
 * @param select SELECT clause
 * @param from FROM clause
 * @param criteria WHERE clause
 * @param groupBy GROUP BY clause
 * @param having HAVING clause
 * @param orderBy ORDER BY clause
 * @param option OPTION clause
 */
public Query( Select select, From from, Criteria criteria, GroupBy groupBy, Criteria having, OrderBy orderBy, Option option ) {
  super();
  setSelect( select );
  setFrom( from );
  setCriteria( criteria );
  setGroupBy( groupBy );
  setHaving( having );
  setOrderBy( orderBy );
  setOption( option );
}

代码示例来源：origin: org.teiid/teiid-engine

/**
 * Constructs an instance of this class given all the clauses
 * @param select SELECT clause
 * @param from FROM clause
 * @param criteria WHERE clause
 * @param groupBy GROUP BY clause
 * @param having HAVING clause
 * @param orderBy ORDER BY clause
 * @param option OPTION clause
 */
public Query( Select select, From from, Criteria criteria, GroupBy groupBy, Criteria having, OrderBy orderBy, Option option ) {
  super();
  setSelect( select );
  setFrom( from );
  setCriteria( criteria );
  setGroupBy( groupBy );
  setHaving( having );
  setOrderBy( orderBy );
  setOption( option );
}

代码示例来源：origin: teiid/teiid

/**
 * Constructs an instance of this class given all the clauses
 * @param select SELECT clause
 * @param from FROM clause
 * @param criteria WHERE clause
 * @param groupBy GROUP BY clause
 * @param having HAVING clause
 * @param orderBy ORDER BY clause
 * @param option OPTION clause
 */
public Query( Select select, From from, Criteria criteria, GroupBy groupBy, Criteria having, OrderBy orderBy, Option option ) {
  super();
  setSelect( select );
  setFrom( from );
  setCriteria( criteria );
  setGroupBy( groupBy );
  setHaving( having );
  setOrderBy( orderBy );
  setOption( option );
}

代码示例来源：origin: org.teiid/teiid-olingo

groupBy.addSymbol(new ElementSymbol(keyCol, this.groupSymbol));
query.setGroupBy(groupBy);

代码示例来源：origin: teiid/teiid

@Test public void testQuery6() {
  Select select = new Select();
  select.addSymbol(new MultipleElementSymbol());
  From from = new From();
  from.addGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
  CompareCriteria cc = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.EQ, new Constant(new Integer(5))); //$NON-NLS-1$
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("e1")); //$NON-NLS-1$
  CompareCriteria having = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.GT, new Constant(new Integer(0))); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setCriteria(cc);
  query.setGroupBy(groupBy);
  query.setHaving(having);
  
  helpTest(query, "SELECT * FROM m.g WHERE e1 = 5 GROUP BY e1 HAVING e1 > 0");		     //$NON-NLS-1$
}

代码示例来源：origin: teiid/teiid

@Test public void testQuery2() {
  Select select = new Select();
  select.addSymbol(new MultipleElementSymbol());
  From from = new From();
  from.addGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
  CompareCriteria cc = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.EQ, new Constant(new Integer(5))); //$NON-NLS-1$
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("e1")); //$NON-NLS-1$
  CompareCriteria having = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.GT, new Constant(new Integer(0))); //$NON-NLS-1$
  OrderBy orderBy = new OrderBy();
  orderBy.addVariable(new ElementSymbol("e1")); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setCriteria(cc);
  query.setGroupBy(groupBy);
  query.setHaving(having);
  query.setOrderBy(orderBy);
  
  helpTest(query, "SELECT * FROM m.g WHERE e1 = 5 GROUP BY e1 HAVING e1 > 0 ORDER BY e1");		     //$NON-NLS-1$
}

代码示例来源：origin: teiid/teiid

@Test public void testQuery7() {
  Select select = new Select();
  select.addSymbol(new MultipleElementSymbol());
  From from = new From();
  from.addGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
  CompareCriteria cc = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.EQ, new Constant(new Integer(5))); //$NON-NLS-1$
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("e1")); //$NON-NLS-1$
  CompareCriteria having = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.GT, new Constant(new Integer(0))); //$NON-NLS-1$
  OrderBy orderBy = new OrderBy();
  orderBy.addVariable(new ElementSymbol("e1")); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setCriteria(cc);
  query.setGroupBy(groupBy);
  query.setHaving(having);
  query.setOrderBy(orderBy);
  
  helpTest(query, "SELECT * FROM m.g WHERE e1 = 5 GROUP BY e1 HAVING e1 > 0 ORDER BY e1");		     //$NON-NLS-1$
}

代码示例来源：origin: teiid/teiid

query.setSelect(select);
query.setFrom(from);
query.setGroupBy(groupBy);
query.setHaving(having);

代码示例来源：origin: teiid/teiid

/** SELECT a FROM m.g GROUP BY b, c HAVING b=5*/
@Test public void testGroupByHaving() {
  GroupSymbol g = new GroupSymbol("m.g"); //$NON-NLS-1$
  From from = new From();
  from.addGroup(g);
  Select select = new Select();
  select.addSymbol(new ElementSymbol("a", false)); //$NON-NLS-1$
  
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("b", false));		 //$NON-NLS-1$
  groupBy.addSymbol(new ElementSymbol("c", false)); //$NON-NLS-1$
  
  CompareCriteria having = new CompareCriteria(new ElementSymbol("b", false), CompareCriteria.EQ, new Constant(new Integer(5))); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setGroupBy(groupBy);
  query.setHaving(having);
  helpTest("SELECT a FROM m.g GROUP BY b, c HAVING b=5",  //$NON-NLS-1$
       "SELECT a FROM m.g GROUP BY b, c HAVING b = 5",  //$NON-NLS-1$
       query);
}

代码示例来源：origin: teiid/teiid

@Test public void testQuery3() {
  Select select = new Select();
  select.addSymbol(new MultipleElementSymbol());
  From from = new From();
  from.addGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("e1")); //$NON-NLS-1$
  CompareCriteria having = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.GT, new Constant(new Integer(0))); //$NON-NLS-1$
  OrderBy orderBy = new OrderBy();
  orderBy.addVariable(new ElementSymbol("e1")); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setGroupBy(groupBy);
  query.setHaving(having);
  query.setOrderBy(orderBy);
  
  helpTest(query, "SELECT * FROM m.g GROUP BY e1 HAVING e1 > 0 ORDER BY e1");		     //$NON-NLS-1$
}

代码示例来源：origin: teiid/teiid

@Test public void testQuery5() {
  Select select = new Select();
  select.addSymbol(new MultipleElementSymbol());
  From from = new From();
  from.addGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
  CompareCriteria cc = new CompareCriteria(new ElementSymbol("e1"), CompareCriteria.EQ, new Constant(new Integer(5))); //$NON-NLS-1$
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("e1")); //$NON-NLS-1$
  OrderBy orderBy = new OrderBy();
  orderBy.addVariable(new ElementSymbol("e1")); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setCriteria(cc);
  query.setGroupBy(groupBy);
  query.setOrderBy(orderBy);
  
  helpTest(query, "SELECT * FROM m.g WHERE e1 = 5 GROUP BY e1 ORDER BY e1");		     //$NON-NLS-1$
}

代码示例来源：origin: teiid/teiid

/** SELECT a FROM m.g GROUP BY a HAVING COUNT(b) > 0*/
@Test public void testHavingFunction() {
  GroupSymbol g = new GroupSymbol("m.g"); //$NON-NLS-1$
  From from = new From();
  from.addGroup(g);
  Select select = new Select();
  select.addSymbol(new ElementSymbol("a")); //$NON-NLS-1$
  
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("a")); //$NON-NLS-1$
  
  Criteria having = new CompareCriteria(
    new AggregateSymbol("COUNT", false, new ElementSymbol("b", false)), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    CompareCriteria.GT,
    new Constant(new Integer(0)) );
      
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setGroupBy(groupBy);
  query.setHaving(having);
  
  helpTest("SELECT a FROM m.g GROUP BY a HAVING COUNT(b) > 0",  //$NON-NLS-1$
       "SELECT a FROM m.g GROUP BY a HAVING COUNT(b) > 0",  //$NON-NLS-1$
       query);
}

代码示例来源：origin: teiid/teiid

copy.setGroupBy( (GroupBy) groupBy.clone());

代码示例来源：origin: org.teiid/teiid-engine

copy.setGroupBy( (GroupBy) groupBy.clone());

代码示例来源：origin: teiid/teiid

/** SELECT a FROM m.g GROUP BY b, c */
@Test public void testGroupBy() {
  GroupSymbol g = new GroupSymbol("m.g"); //$NON-NLS-1$
  From from = new From();
  from.addGroup(g);
  Select select = new Select();
  select.addSymbol(new ElementSymbol("a", false)); //$NON-NLS-1$
  
  GroupBy groupBy = new GroupBy();
  groupBy.addSymbol(new ElementSymbol("b", false));		 //$NON-NLS-1$
  groupBy.addSymbol(new ElementSymbol("c", false)); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setGroupBy(groupBy);
  helpTest("SELECT a FROM m.g GROUP BY b, c",  //$NON-NLS-1$
       "SELECT a FROM m.g GROUP BY b, c",  //$NON-NLS-1$
       query);
}

代码示例来源：origin: teiid/teiid

@Test public void testGroupByRollup() {
  GroupSymbol g = new GroupSymbol("m.g"); //$NON-NLS-1$
  From from = new From();
  from.addGroup(g);
  Select select = new Select();
  select.addSymbol(new ElementSymbol("a", false)); //$NON-NLS-1$
  
  GroupBy groupBy = new GroupBy();
  groupBy.setRollup(true);
  groupBy.addSymbol(new ElementSymbol("b", false));		 //$NON-NLS-1$
  groupBy.addSymbol(new ElementSymbol("c", false)); //$NON-NLS-1$
  
  Query query = new Query();
  query.setSelect(select);
  query.setFrom(from);
  query.setGroupBy(groupBy);
  helpTest("SELECT a FROM m.g GROUP BY rollup(b, c)",  //$NON-NLS-1$
       "SELECT a FROM m.g GROUP BY ROLLUP(b, c)",  //$NON-NLS-1$
       query);
}

代码示例来源：origin: org.jboss.teiid/teiid-engine

copy.setGroupBy( (GroupBy) groupBy.clone());

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