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 and Description
static String	FIELD_NAME_FILTER_NULLS
static String	FIELD_NAME_JOIN_TYPE
static String	FIELD_NAME_LEFT_KEYS
static String	FIELD_NAME_NON_EQUI_CONDITION
static String	FIELD_NAME_RIGHT_KEYS

Constructor Summary

Constructors

Constructor and Description
JoinSpec(FlinkJoinType joinType, int[] leftKeys, int[] rightKeys, boolean[] filterNulls, org.apache.calcite.rex.RexNode nonEquiCondition)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
boolean[]	getFilterNulls()
int	getJoinKeySize() Gets number of keys in join key.
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 Detail

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

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Constant Field Values

FIELD_NAME_RIGHT_KEYS

public static final String FIELD_NAME_RIGHT_KEYS

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Constant Field Values

FIELD_NAME_FILTER_NULLS

public static final String FIELD_NAME_FILTER_NULLS

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Constant Field Values

FIELD_NAME_NON_EQUI_CONDITION

public static final String FIELD_NAME_NON_EQUI_CONDITION

See Also:

Constant Field Values

Constructor Detail

JoinSpec

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

Method Detail

getJoinType

public 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