java.lang.Object
- org.apache.iotdb.db.mpp.plan.expression.Expression
- - org.apache.iotdb.db.mpp.plan.expression.binary.BinaryExpression

Direct Known Subclasses:

ArithmeticBinaryExpression, CompareBinaryExpression, LogicBinaryExpression
```
public abstract class BinaryExpression
extends Expression
```

Field Summary

Fields
Modifier and Type Field Description

protected Expression leftExpression

protected Expression rightExpression
- Fields inherited from class org.apache.iotdb.db.mpp.plan.expression.Expression
  inputColumnIndex, isConstantOperandCache

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`BinaryExpression(java.nio.ByteBuffer byteBuffer)`
`protected`	`BinaryExpression(Expression leftExpression, Expression rightExpression)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`<R,C> R`	`accept(ExpressionVisitor<R,C> visitor, C context)`	Accessible for `ExpressionVisitor`, use `ExpressionVisitor.process(org.apache.iotdb.db.mpp.plan.expression.Expression, C)` instead.
`void`	`bindInputLayerColumnIndexWithExpression(java.util.Map<java.lang.String,java.util.List<InputLocation>> inputLocations)`
`void`	`bindInputLayerColumnIndexWithExpression(UDTFPlan udtfPlan)`
`void`	`collectPaths(java.util.Set<org.apache.iotdb.commons.path.PartialPath> pathSet)`
`void`	`concat(java.util.List<org.apache.iotdb.commons.path.PartialPath> prefixPaths, java.util.List<Expression> resultExpressions)`
`void`	`constructUdfExecutors(java.util.Map<java.lang.String,UDTFExecutor> expressionName2Executor, java.time.ZoneId zoneId)`
`java.util.List<Expression>`	`getExpressions()`	returns the DIRECT children expressions if it has any, otherwise an EMPTY list will be returned
`java.lang.String`	`getExpressionStringInternal()`	Sub-classes should override this method to provide valid string representation of this object.
`Expression`	`getLeftExpression()`
`Expression`	`getRightExpression()`
`boolean`	`isConstantOperandInternal()`	Sub-classes should override this method indicating if the expression is a constant operand
`boolean`	`isMappable(TypeProvider typeProvider)`
`boolean`	`isTimeSeriesGeneratingFunctionExpression()`
`boolean`	`isUserDefinedAggregationFunctionExpression()`
`protected abstract java.lang.String`	`operator()`
`void`	`removeWildcards(WildcardsRemover wildcardsRemover, java.util.List<Expression> resultExpressions)`
`protected void`	`serialize(java.io.DataOutputStream stream)`
`protected void`	`serialize(java.nio.ByteBuffer byteBuffer)`
`void`	`setLeftExpression(Expression leftExpression)`
`void`	`setRightExpression(Expression rightExpression)`
`void`	`updateStatisticsForMemoryAssigner(LayerMemoryAssigner memoryAssigner)`

Methods inherited from class org.apache.iotdb.db.mpp.plan.expression.Expression
checkInputExpressionDataType, deserialize, equals, getExpressionString, getExpressionType, getInputColumnIndex, hashCode, inferTypes, isBuiltInAggregationFunctionExpression, isCompareBinaryExpression, isConstantOperand, iterator, serialize, serialize, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

leftExpression
```
protected Expression leftExpression
```

rightExpression
```
protected Expression rightExpression
```

Constructor Detail

BinaryExpression

protected BinaryExpression(Expression leftExpression,
                           Expression rightExpression)

BinaryExpression

protected BinaryExpression(java.nio.ByteBuffer byteBuffer)

Method Detail
- accept
```
public <R,C> R accept(ExpressionVisitor<R,C> visitor,
                            C context)
```
  Description copied from class: Expression
  
  Accessible for ExpressionVisitor, use ExpressionVisitor.process(org.apache.iotdb.db.mpp.plan.expression.Expression, C) instead.
  
  Overrides:
  
  accept in class Expression
- getLeftExpression
```
public Expression getLeftExpression()
```
- getRightExpression
```
public Expression getRightExpression()
```
- setLeftExpression
```
public void setLeftExpression(Expression leftExpression)
```
- setRightExpression
```
public void setRightExpression(Expression rightExpression)
```
- isConstantOperandInternal
```
public boolean isConstantOperandInternal()
```
  Description copied from class: Expression
  
  Sub-classes should override this method indicating if the expression is a constant operand
  
  Specified by:
  
  isConstantOperandInternal in class Expression
- isTimeSeriesGeneratingFunctionExpression
```
public boolean isTimeSeriesGeneratingFunctionExpression()
```
  Overrides:
  
  isTimeSeriesGeneratingFunctionExpression in class Expression
- isUserDefinedAggregationFunctionExpression
```
public boolean isUserDefinedAggregationFunctionExpression()
```
  Overrides:
  
  isUserDefinedAggregationFunctionExpression in class Expression
- getExpressions
```
public java.util.List<Expression> getExpressions()
```
  Description copied from class: Expression
  
  returns the DIRECT children expressions if it has any, otherwise an EMPTY list will be returned
  
  Specified by:
  
  getExpressions in class Expression
- concat
```
public final void concat(java.util.List<org.apache.iotdb.commons.path.PartialPath> prefixPaths,
                         java.util.List<Expression> resultExpressions)
```
  Specified by:
  
  concat in class Expression
- removeWildcards
```
public final void removeWildcards(WildcardsRemover wildcardsRemover,
                                  java.util.List<Expression> resultExpressions)
                           throws LogicalOptimizeException
```
  Specified by:
  
  removeWildcards in class Expression
  
  Throws:
  
  LogicalOptimizeException
- collectPaths
```
public void collectPaths(java.util.Set<org.apache.iotdb.commons.path.PartialPath> pathSet)
```
  Specified by:
  
  collectPaths in class Expression
- constructUdfExecutors
```
public void constructUdfExecutors(java.util.Map<java.lang.String,UDTFExecutor> expressionName2Executor,
                                  java.time.ZoneId zoneId)
```
  Specified by:
  
  constructUdfExecutors in class Expression
- bindInputLayerColumnIndexWithExpression
```
public final void bindInputLayerColumnIndexWithExpression(UDTFPlan udtfPlan)
```
  Specified by:
  
  bindInputLayerColumnIndexWithExpression in class Expression
- bindInputLayerColumnIndexWithExpression
```
public final void bindInputLayerColumnIndexWithExpression(java.util.Map<java.lang.String,java.util.List<InputLocation>> inputLocations)
```
  Specified by:
  
  bindInputLayerColumnIndexWithExpression in class Expression
- updateStatisticsForMemoryAssigner
```
public void updateStatisticsForMemoryAssigner(LayerMemoryAssigner memoryAssigner)
```
  Specified by:
  
  updateStatisticsForMemoryAssigner in class Expression
- isMappable
```
public boolean isMappable(TypeProvider typeProvider)
```
  Specified by:
  
  isMappable in class Expression
- getExpressionStringInternal
```
public final java.lang.String getExpressionStringInternal()
```
  Description copied from class: Expression
  
  Sub-classes should override this method to provide valid string representation of this object. See Expression.getExpressionString()
  
  Specified by:
  
  getExpressionStringInternal in class Expression
- operator
```
protected abstract java.lang.String operator()
```
- serialize
```
protected void serialize(java.nio.ByteBuffer byteBuffer)
```
  Specified by:
  
  serialize in class Expression
- serialize
```
protected void serialize(java.io.DataOutputStream stream)
                  throws java.io.IOException
```
  Specified by:
  
  serialize in class Expression
  
  Throws:
  
  java.io.IOException

Modifier and Type	Field	Description
`protected Expression`	`leftExpression`
`protected Expression`	`rightExpression`

Class BinaryExpression

Field Summary

Fields inherited from class org.apache.iotdb.db.mpp.plan.expression.Expression

Constructor Summary

Method Summary

Methods inherited from class org.apache.iotdb.db.mpp.plan.expression.Expression

Methods inherited from class java.lang.Object

Field Detail

leftExpression

rightExpression

Constructor Detail

BinaryExpression

BinaryExpression

Method Detail

accept

getLeftExpression

getRightExpression

setLeftExpression

setRightExpression

isConstantOperandInternal

isTimeSeriesGeneratingFunctionExpression

isUserDefinedAggregationFunctionExpression

getExpressions

concat

removeWildcards

collectPaths

constructUdfExecutors

bindInputLayerColumnIndexWithExpression

bindInputLayerColumnIndexWithExpression

updateStatisticsForMemoryAssigner

isMappable

getExpressionStringInternal

operator

serialize

serialize