Builder.isNull - corda

corda / net.corda.core.node.services.vault / Builder / isNull

# isNull

`fun <R> isNull(): NullExpression<R>`
`fun <O, R> KProperty1<O, R?>.isNull(): ColumnPredicateExpression<O, R>`
`@JvmStatic fun Field.isNull(): ColumnPredicateExpression<Any, Any>`
Deprecated: Does not support fields from a MappedSuperclass. Use equivalent on a FieldInfo.
`@JvmStatic fun FieldInfo.isNull(): ColumnPredicateExpression<Any, Any>`