Package org.apache.flink.table.planner.plan.nodes.exec.spec

Class JoinSpec

java.lang.Object

org.apache.flink.table.planner.plan.nodes.exec.spec.JoinSpec

public class JoinSpec
extends Object

JoinSpec describes how two tables will be joined.

This class corresponds to Join rel node.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	FIELD_NAME_FILTER_NULLS
static final String	FIELD_NAME_JOIN_TYPE
static final String	FIELD_NAME_LEFT_KEYS
static final String	FIELD_NAME_NON_EQUI_CONDITION
static final String	FIELD_NAME_RIGHT_KEYS

Constructor Summary

Constructors

Constructor	Description
JoinSpec(org.apache.flink.table.runtime.operators.join.FlinkJoinType joinType, int[] leftKeys, int[] rightKeys, boolean[] filterNulls, org.apache.calcite.rex.RexNode nonEquiCondition)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
boolean[]	getFilterNulls()
int	getJoinKeySize()	Gets number of keys in join key.
org.apache.flink.table.runtime.operators.join.FlinkJoinType	getJoinType()
int[]	getLeftKeys()
Optional<org.apache.calcite.rex.RexNode>	getNonEquiCondition()
int[]	getRightKeys()
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Details

FIELD_NAME_JOIN_TYPE

public static final String FIELD_NAME_JOIN_TYPE

See Also:

• Constant Field Values

FIELD_NAME_LEFT_KEYS

public static final String FIELD_NAME_LEFT_KEYS

See Also:

• Constant Field Values

FIELD_NAME_RIGHT_KEYS

public static final String FIELD_NAME_RIGHT_KEYS

See Also:

• Constant Field Values

FIELD_NAME_FILTER_NULLS

public static final String FIELD_NAME_FILTER_NULLS

See Also:

• Constant Field Values

FIELD_NAME_NON_EQUI_CONDITION

public static final String FIELD_NAME_NON_EQUI_CONDITION

See Also:

• Constant Field Values

Constructor Details

JoinSpec

public JoinSpec(org.apache.flink.table.runtime.operators.join.FlinkJoinType joinType,
 int[] leftKeys,
 int[] rightKeys,
 boolean[] filterNulls,
 @Nullable
 org.apache.calcite.rex.RexNode nonEquiCondition)

Method Details

getJoinType

public org.apache.flink.table.runtime.operators.join.FlinkJoinType getJoinType()

getLeftKeys

public int[] getLeftKeys()

getRightKeys

public int[] getRightKeys()

getFilterNulls

public boolean[] getFilterNulls()

getNonEquiCondition

public Optional<org.apache.calcite.rex.RexNode> getNonEquiCondition()

getJoinKeySize

public int getJoinKeySize()

Gets number of keys in join key.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object