public class CoerceInputsRule extends RelOptRule
Modifier and Type | Field and Description |
---|---|
private boolean |
coerceNames |
private java.lang.Class |
consumerRelClass |
description, operands, relBuilderFactory
Constructor and Description |
---|
CoerceInputsRule(java.lang.Class<? extends RelNode> consumerRelClass,
boolean coerceNames)
Deprecated.
|
CoerceInputsRule(java.lang.Class<? extends RelNode> consumerRelClass,
boolean coerceNames,
RelBuilderFactory relBuilderFactory)
Creates a CoerceInputsRule.
|
Modifier and Type | Method and Description |
---|---|
Convention |
getOutConvention()
Returns the convention of the result of firing this rule, null if
not known.
|
void |
onMatch(RelOptRuleCall call)
Receives notification about a rule match.
|
any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered
private final java.lang.Class consumerRelClass
private final boolean coerceNames
@Deprecated public CoerceInputsRule(java.lang.Class<? extends RelNode> consumerRelClass, boolean coerceNames)
public CoerceInputsRule(java.lang.Class<? extends RelNode> consumerRelClass, boolean coerceNames, RelBuilderFactory relBuilderFactory)
consumerRelClass
- Class of RelNode that will consume the inputscoerceNames
- If true, coerce names and types; if false, coerce
type onlyrelBuilderFactory
- Builder for relational expressionspublic Convention getOutConvention()
RelOptRule
getOutConvention
in class RelOptRule
public void onMatch(RelOptRuleCall call)
RelOptRule
call.rels
holds the set of relational
expressions which match the operands to the rule;
call.rels[0]
is the root expression.
Typically a rule would check that the nodes are valid matches, creates
a new expression, then calls back RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>)
to
register the expression.
onMatch
in class RelOptRule
call
- Rule callRelOptRule.matches(RelOptRuleCall)
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