exposed-core/org.jetbrains.exposed.sql/ForeignKeyConstraint

ForeignKeyConstraint

data class ForeignKeyConstraint(val references: Map<Column<*>, Column<*>>, onUpdate: ReferenceOption?, onDelete: ReferenceOption?, name: String?) : DdlAware

Represents a foreign key constraint.

Constructors

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constructor(target: Column<*>, from: Column<*>, onUpdate: ReferenceOption?, onDelete: ReferenceOption?, name: String?)
constructor(references: Map<Column<*>, Column<*>>, onUpdate: ReferenceOption?, onDelete: ReferenceOption?, name: String?)

Properties

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val customFkName: String?

Custom foreign key name, if provided.

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open val ddl: List<String>

Returns the list of DDL statements that create this DdlAware instance.

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val deleteRule: ReferenceOption?

Reference option when performing delete operations.

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val fkName: String

Name of this foreign key constraint.

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val from: LinkedHashSet<Column<*>>

The foreign key columns of the referencing child table.

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val fromTable: Table

The referencing child table.

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val fromTableName: String

Name of the referencing child table.

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val references: Map<Column<*>, Column<*>>

Mapping of the foreign key columns in the referencing child table to their referenced parent table columns.

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val target: LinkedHashSet<Column<*>>

The columns of the referenced parent table.

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val targetTable: Table

The referenced parent table.

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val targetTableName: String

Name of the referenced parent table.

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val updateRule: ReferenceOption?

Reference option when performing update operations.

Functions

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open override fun createStatement(): List<String>

Returns the list of DDL statements that create this object.

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open override fun dropStatement(): List<String>

Returns the list of DDL statements that drops this object.

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open override fun modifyStatement(): List<String>

Returns the list of DDL statements that modify this object.

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fun targetOf(from: Column<*>): Column<*>?

Returns the parent table column that is referenced by the from column in the child table.

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open override fun toString(): String