# R2dbcExposedConnection

interface R2dbcExposedConnection<OriginalConnection : Any>

Represents a wrapper for a database connection.

#### Inheritors

R2dbcConnectionImpl

## Properties

connection
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abstract val connection: OriginalConnection

The underlying database connection object contained by this wrapper.

## Functions

close
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abstract suspend fun close()

Closes the connection and releases any of its database and/or driver resources.

commit
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abstract suspend fun commit()

Saves all changes since the last commit or rollback operation.

executeInBatch
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abstract suspend fun executeInBatch(sqls: List<String>)

Sends a collection of SQL strings to the database for execution as a batch statement.

getAutoCommit
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abstract suspend fun getAutoCommit(): Boolean

Retrieves whether the connection is in auto-commit mode.

getCatalog
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abstract suspend fun getCatalog(): String

Retrieves the name of the connection's catalog.

getReadOnly
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abstract suspend fun getReadOnly(): Boolean

Retrieves whether the connection is in read-only mode.

getSchema
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abstract suspend fun getSchema(): String

Retrieves the name of the connection's schema.

getTransactionIsolation
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abstract suspend fun getTransactionIsolation(): IsolationLevel

Retrieves the transaction isolation level of the connection.

isClosed
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abstract suspend fun isClosed(): Boolean

Whether the connection has been closed.

metadata
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abstract suspend fun <T> metadata(body: suspend R2dbcExposedDatabaseMetadata.() -> T): T

Calls the specified function body with an R2dbcExposedDatabaseMetadata implementation as its receiver and returns the retrieved metadata from the database as a result.

prepareStatement
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abstract suspend fun prepareStatement(sql: String, columns: Array<String>): R2dbcPreparedStatementImpl
abstract suspend fun prepareStatement(sql: String, returnKeys: Boolean): R2dbcPreparedStatementImpl

Returns a precompiled sql statement stored as an R2dbcPreparedStatementImpl implementation.

releaseSavepoint
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abstract suspend fun releaseSavepoint(savepoint: ExposedSavepoint)

Removes the specified savepoint.

rollback
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abstract suspend fun rollback()

Reverts all changes since the last commit or rollback operation.

abstract suspend fun rollback(savepoint: ExposedSavepoint)

Reverts all changes since the specified savepoint was set.

setAutoCommit
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abstract suspend fun setAutoCommit(value: Boolean)

Sets whether the connection is in auto-commit mode or not.

setCatalog
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abstract suspend fun setCatalog(value: String)

Sets the name of the connection's catalog.

setReadOnly
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abstract suspend fun setReadOnly(value: Boolean)

Set whether the connection is in read-only mode.

setSavepoint
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abstract suspend fun setSavepoint(name: String): ExposedSavepoint

Sets and returns a new savepoint with the specified name.

setTransactionDefinition
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abstract fun setTransactionDefinition(definition: TransactionDefinition?)

Sets specific transaction properties to be used together when starting a transaction explicitly. Passing a `null` argument will force `beginTransaction()` to be invoked without any transaction definition.

setTransactionIsolation
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abstract suspend fun setTransactionIsolation(value: IsolationLevel)

Sets the transaction isolation level of the connection.