Package org.apache.calcite.plan
Class RelOptUtil.InputFinder
- java.lang.Object
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- org.apache.calcite.rex.RexVisitorImpl<java.lang.Void>
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- org.apache.calcite.plan.RelOptUtil.InputFinder
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- All Implemented Interfaces:
RexVisitor<java.lang.Void>
- Enclosing class:
- RelOptUtil
public static class RelOptUtil.InputFinder extends RexVisitorImpl<java.lang.Void>
Visitor which builds a bitmap of the inputs used by an expression.
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Field Summary
Fields Modifier and Type Field Description private java.util.Set<RelDataTypeField>
extraFields
ImmutableBitSet.Builder
inputBitSet
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Fields inherited from class org.apache.calcite.rex.RexVisitorImpl
deep
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Constructor Summary
Constructors Constructor Description InputFinder()
InputFinder(java.util.Set<RelDataTypeField> extraFields)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static RelOptUtil.InputFinder
analyze(RexNode node)
Returns an input finder that has analyzed a given expression.static ImmutableBitSet
bits(java.util.List<RexNode> exprs, RexNode expr)
Returns a bit set describing the inputs used by a collection of project expressions and an optional condition.static ImmutableBitSet
bits(RexNode node)
Returns a bit set describing the inputs used by an expression.java.lang.Void
visitCall(RexCall call)
java.lang.Void
visitInputRef(RexInputRef inputRef)
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Methods inherited from class org.apache.calcite.rex.RexVisitorImpl
visitArrayAnd, visitArrayOr, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef
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Field Detail
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inputBitSet
public final ImmutableBitSet.Builder inputBitSet
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extraFields
private final java.util.Set<RelDataTypeField> extraFields
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Constructor Detail
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InputFinder
public InputFinder()
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InputFinder
public InputFinder(java.util.Set<RelDataTypeField> extraFields)
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Method Detail
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analyze
public static RelOptUtil.InputFinder analyze(RexNode node)
Returns an input finder that has analyzed a given expression.
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bits
public static ImmutableBitSet bits(RexNode node)
Returns a bit set describing the inputs used by an expression.
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bits
public static ImmutableBitSet bits(java.util.List<RexNode> exprs, RexNode expr)
Returns a bit set describing the inputs used by a collection of project expressions and an optional condition.
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visitInputRef
public java.lang.Void visitInputRef(RexInputRef inputRef)
- Specified by:
visitInputRef
in interfaceRexVisitor<java.lang.Void>
- Overrides:
visitInputRef
in classRexVisitorImpl<java.lang.Void>
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visitCall
public java.lang.Void visitCall(RexCall call)
- Specified by:
visitCall
in interfaceRexVisitor<java.lang.Void>
- Overrides:
visitCall
in classRexVisitorImpl<java.lang.Void>
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