ExecutionContext class abstract

Implementers

• ConnectionInterface
• TransactionContext

Constructors

ExecutionContext.new()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

execute(String sql) → Future<int>

execute a sql command e return affected row count Example: con.execute('DROP SCHEMA IF EXISTS myschema CASCADE;')

executeStatement(Query query, {bool isDeallocate = false}) → Future<Results>

run prepared query with (prepareStatement) method and return List of Row

executeStatementAsStream(Query query) → Future<ResultStream>

run query prepared with (prepareStatement) method

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

prepareStatement(String sql, dynamic params, {bool isUnamedStatement = false, PlaceholderIdentifier placeholderIdentifier = PlaceholderIdentifier.pgDefault}) → Future<Query>

prepare statement params parameters can be a list or a map, if you use placeholderIdentifier is PlaceholderIdentifier.pgDefault or PlaceholderIdentifier.onlyQuestionMark it has to be a List, if different it has to be a Map return Query prepared with statementName for execute with (executeStatement) method Example: var statement = await prepareStatement('SELECT * FROM table LIMIT $1', 0); var result await executeStatement(statement);

queryNamed(String sql, dynamic params, {PlaceholderIdentifier placeholderIdentifier = PlaceholderIdentifier.pgDefault, bool isDeallocate = false}) → Future<Results>

querySimple(String sql) → Future<Results>

execute a simple query whitout prepared statement this use a simple Postgresql Protocol https://www.postgresql.org/docs/current/protocol-flow.html#id-1.10.6.7.4

querySimpleAsStream(String sql) → Future<ResultStream>

execute a simple query whitout prepared statement this use a simple Postgresql Protocol https://www.postgresql.org/docs/current/protocol-flow.html#id-1.10.6.7.4

queryUnnamed(String sql, dynamic params, {PlaceholderIdentifier placeholderIdentifier = PlaceholderIdentifier.pgDefault, bool isDeallocate = false}) → Future<Results>

execute a prepared unnamed statement params parameters can be a list or a map, if you use placeholderIdentifier is PlaceholderIdentifier.pgDefault or PlaceholderIdentifier.onlyQuestionMark it has to be a List, if different it has to be a Map return Query prepared with statementName for execute with (executeStatement) method Example: com.queryUnnamed(r'select * from crud_teste.pessoas limit $1', 1);

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited