本文整理了Java中org.h2.command.dml.Query.getColumnCount方法的一些代码示例，展示了Query.getColumnCount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.getColumnCount方法的具体详情如下：
包路径：org.h2.command.dml.Query
类名称：Query
方法名：getColumnCount

Query.getColumnCount介绍

[英]Get the column count of this query.
[中]获取此查询的列计数。

代码示例

代码示例来源：origin: com.h2database/h2

@Override
public int getColumnCount() {
  return left.getColumnCount();
}

代码示例来源：origin: com.h2database/h2

public LocalResult getEmptyResult() {
  int columnCount = left.getColumnCount();
  return new LocalResult(session, expressionArray, columnCount);
}

代码示例来源：origin: com.h2database/h2

private Expression getExpression() {
  if (expression == null) {
    ArrayList<Expression> expressions = query.getExpressions();
    int columnCount = query.getColumnCount();
    if (columnCount == 1) {
      expression = expressions.get(0);
    } else {
      Expression[] list = new Expression[columnCount];
      for (int i = 0; i < columnCount; i++) {
        list[i] = expressions.get(i);
      }
      expression = new ExpressionList(list);
    }
  }
  return expression;
}

代码示例来源：origin: com.h2database/h2

@Override
public ResultInterface queryMeta() {
  int columnCount = left.getColumnCount();
  LocalResult result = new LocalResult(session, expressionArray, columnCount);
  result.done();
  return result;
}

代码示例来源：origin: com.h2database/h2

@Override
public void init() {
  if (SysProperties.CHECK && checkInit) {
    DbException.throwInternalError();
  }
  checkInit = true;
  left.init();
  right.init();
  int len = left.getColumnCount();
  if (len != right.getColumnCount()) {
    throw DbException.get(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH);
  }
  ArrayList<Expression> le = left.getExpressions();
  // set the expressions to get the right column count and names,
  // but can't validate at this time
  expressions = New.arrayList();
  for (int i = 0; i < len; i++) {
    Expression l = le.get(i);
    expressions.add(l);
  }
}

代码示例来源：origin: com.h2database/h2

@Override
public Expression optimize(Session session) {
  left = left.optimize(session);
  query.setRandomAccessResult(true);
  session.optimizeQueryExpression(query);
  if (query.getColumnCount() != 1) {
    throw DbException.get(ErrorCode.SUBQUERY_IS_NOT_SINGLE_COLUMN);
  }
  // Can not optimize: the data may change
  return this;
}

代码示例来源：origin: com.h2database/h2

if (query.getColumnCount() != columns.length) {
  throw DbException.get(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH);

代码示例来源：origin: com.h2database/h2

left.prepare();
right.prepare();
int len = left.getColumnCount();

代码示例来源：origin: com.h2database/h2

private void generateColumnsFromQuery() {
  int columnCount = asQuery.getColumnCount();
  ArrayList<Expression> expressions = asQuery.getExpressions();
  ColumnNamer columnNamer= new ColumnNamer(session);

代码示例来源：origin: com.h2database/h2

if (query.getColumnCount() != columns.length) {
  throw DbException.get(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH);

代码示例来源：origin: com.h2database/h2

if (query.getColumnCount() != columns.length) {
  throw DbException.get(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH);

代码示例来源：origin: com.h2database/h2

if (query.getColumnCount() != columns.length) {
  throw DbException.get(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH);

代码示例来源：origin: com.h2database/h2

ArrayList<Column> list = New.arrayList();
ColumnNamer columnNamer = new ColumnNamer(session);
for (int i = 0, count = compiledQuery.getColumnCount(); i < count; i++) {
  Expression expr = expressions.get(i);
  String name = null;

代码示例来源：origin: com.h2database/h2

if (data.columns.isEmpty()) {
  generateColumnsFromQuery();
} else if (data.columns.size() != asQuery.getColumnCount()) {
  throw DbException.get(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH);

代码示例来源：origin: com.h2database/h2

int columnCount = left.getColumnCount();
if (session.isLazyQueryExecution() && unionType == UnionType.UNION_ALL && !distinct &&
    sort == null && !randomAccessResult && !isForUpdate &&

代码示例来源：origin: com.eventsourcing/h2

@Override
public ResultInterface queryMeta() {
  int columnCount = left.getColumnCount();
  LocalResult result = new LocalResult(session, expressionArray, columnCount);
  result.done();
  return result;
}

代码示例来源：origin: org.wowtools/h2

@Override
public ResultInterface queryMeta() {
  int columnCount = left.getColumnCount();
  LocalResult result = new LocalResult(session, expressionArray, columnCount);
  result.done();
  return result;
}

代码示例来源：origin: com.h2database/com.springsource.org.h2

public LocalResult queryMeta() throws SQLException {
  ObjectArray expressions = left.getExpressions();
  int columnCount = left.getColumnCount();
  LocalResult result = new LocalResult(session, expressions, columnCount);
  result.done();
  return result;
}

代码示例来源：origin: com.eventsourcing/h2

@Override
public Expression optimize(Session session) {
  left = left.optimize(session);
  query.setRandomAccessResult(true);
  session.optimizeQueryExpression(query);
  if (query.getColumnCount() != 1) {
    throw DbException.get(ErrorCode.SUBQUERY_IS_NOT_SINGLE_COLUMN);
  }
  // Can not optimize: the data may change
  return this;
}

代码示例来源：origin: org.wowtools/h2

@Override
public Expression optimize(Session session) {
  left = left.optimize(session);
  query.setRandomAccessResult(true);
  session.optimizeQueryExpression(query);
  if (query.getColumnCount() != 1) {
    throw DbException.get(ErrorCode.SUBQUERY_IS_NOT_SINGLE_COLUMN);
  }
  // Can not optimize: the data may change
  return this;
}