本文整理汇总了Java中org.apache.calcite.sql.JoinType类的典型用法代码示例。如果您正苦于以下问题:Java JoinType类的具体用法?Java JoinType怎么用?Java JoinType使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
JoinType类属于org.apache.calcite.sql包,在下文中一共展示了JoinType类的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: convertJoinType
import org.apache.calcite.sql.JoinType; //导入依赖的package包/类
private static JoinRelType convertJoinType(JoinType joinType) {
switch (joinType) {
case COMMA:
case INNER:
case CROSS:
return JoinRelType.INNER;
case FULL:
return JoinRelType.FULL;
case LEFT:
return JoinRelType.LEFT;
case RIGHT:
return JoinRelType.RIGHT;
default:
throw Util.unexpected(joinType);
}
}
示例2: convertJoinType
import org.apache.calcite.sql.JoinType; //导入依赖的package包/类
private static JoinRelType convertJoinType(JoinType joinType) {
switch (joinType) {
case COMMA:
case INNER:
case CROSS:
return JoinRelType.INNER;
case FULL:
return JoinRelType.FULL;
case LEFT:
return JoinRelType.LEFT;
case RIGHT:
return JoinRelType.RIGHT;
default:
throw Util.unexpected(joinType);
}
}
示例3: visit
import org.apache.calcite.sql.JoinType; //导入依赖的package包/类
/** @see #dispatch */
public Result visit(Join e) {
final Result leftResult = visitChild(0, e.getLeft()).resetAlias();
final Result rightResult = visitChild(1, e.getRight()).resetAlias();
final Context leftContext = leftResult.qualifiedContext();
final Context rightContext = rightResult.qualifiedContext();
SqlNode sqlCondition = null;
SqlLiteral condType = JoinConditionType.ON.symbol(POS);
JoinType joinType = joinType(e.getJoinType());
if (e.getJoinType() == JoinRelType.INNER && e.getCondition().isAlwaysTrue()) {
joinType = JoinType.COMMA;
condType = JoinConditionType.NONE.symbol(POS);
} else {
sqlCondition = convertConditionToSqlNode(e.getCondition(),
leftContext,
rightContext,
e.getLeft().getRowType().getFieldCount());
}
SqlNode join =
new SqlJoin(POS,
leftResult.asFrom(),
SqlLiteral.createBoolean(false, POS),
joinType.symbol(POS),
rightResult.asFrom(),
condType,
sqlCondition);
return result(join, leftResult, rightResult);
}