Package org.apache.iotdb.db.mpp.plan.expression.leaf

Class TimestampOperand

java.lang.Object

org.apache.iotdb.db.mpp.plan.expression.Expression

org.apache.iotdb.db.mpp.plan.expression.leaf.LeafOperand

org.apache.iotdb.db.mpp.plan.expression.leaf.TimestampOperand

public class TimestampOperand
extends LeafOperand

Field Summary

Fields

Modifier and Type	Field	Description
static org.apache.iotdb.commons.path.PartialPath	TIMESTAMP_PARTIAL_PATH

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

inputColumnIndex, isConstantOperandCache

Constructor Summary

Constructors

Constructor	Description
TimestampOperand()
TimestampOperand(java.nio.ByteBuffer byteBuffer)

Method Summary

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)
protected java.lang.String	getExpressionStringInternal()	Sub-classes should override this method to provide valid string representation of this object.
ExpressionType	getExpressionType()
org.apache.iotdb.tsfile.file.metadata.enums.TSDataType	inferTypes(TypeProvider typeProvider)
protected boolean	isConstantOperandInternal()	Sub-classes should override this method indicating if the expression is a constant operand
boolean	isTimeSeriesGeneratingFunctionExpression()
void	removeWildcards(WildcardsRemover wildcardsRemover, java.util.List<Expression> resultExpressions)
protected void	serialize(java.io.DataOutputStream stream)
protected void	serialize(java.nio.ByteBuffer byteBuffer)
void	updateStatisticsForMemoryAssigner(LayerMemoryAssigner memoryAssigner)

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

constructUdfExecutors, getExpressions, isMappable

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

checkInputExpressionDataType, deserialize, equals, getExpressionString, getInputColumnIndex, hashCode, isBuiltInAggregationFunctionExpression, isCompareBinaryExpression, isConstantOperand, isUserDefinedAggregationFunctionExpression, iterator, serialize, serialize, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

TIMESTAMP_PARTIAL_PATH

public static final org.apache.iotdb.commons.path.PartialPath TIMESTAMP_PARTIAL_PATH

Constructor Detail

TimestampOperand

public TimestampOperand()

TimestampOperand

public TimestampOperand(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

isTimeSeriesGeneratingFunctionExpression

public boolean isTimeSeriesGeneratingFunctionExpression()

Overrides:

isTimeSeriesGeneratingFunctionExpression in class Expression

concat

public 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 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

inferTypes

public org.apache.iotdb.tsfile.file.metadata.enums.TSDataType inferTypes(TypeProvider typeProvider)

Specified by:

inferTypes in class Expression

bindInputLayerColumnIndexWithExpression

public void bindInputLayerColumnIndexWithExpression(UDTFPlan udtfPlan)

Specified by:

bindInputLayerColumnIndexWithExpression in class Expression

bindInputLayerColumnIndexWithExpression

public 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

isConstantOperandInternal

protected 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

getExpressionStringInternal

protected 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

getExpressionType

public ExpressionType getExpressionType()

Specified by:

getExpressionType in class Expression

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