Package org.apache.cayenne.dba.postgres
Class PostgresAdapter
java.lang.Object
org.apache.cayenne.dba.JdbcAdapter
org.apache.cayenne.dba.postgres.PostgresAdapter
- All Implemented Interfaces:
DbAdapter
DbAdapter implementation for PostgreSQL
RDBMS . Sample connection settings to use with PostgreSQL are shown
below:
postgres.jdbc.username = test
postgres.jdbc.password = secret
postgres.jdbc.url = jdbc:postgresql://serverhostname/cayenne
postgres.jdbc.driver = org.postgresql.Driver
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Field Summary
FieldsFields inherited from class org.apache.cayenne.dba.JdbcAdapter
caseInsensitiveCollations, ejbqlTranslatorFactory, extendedTypes, logger, quotingStrategy, resourceLocator, supportsBatchUpdates, supportsGeneratedKeys, supportsUniqueConstraints, typesHandler -
Constructor Summary
ConstructorsConstructorDescriptionPostgresAdapter(RuntimeProperties runtimeProperties, List<ExtendedType> defaultExtendedTypes, List<ExtendedType> userExtendedTypes, List<ExtendedTypeFactory> extendedTypeFactories, ResourceLocator resourceLocator, ValueObjectTypeRegistry valueObjectTypeRegistry) -
Method Summary
Modifier and TypeMethodDescriptionvoidbindParameter(PreparedStatement statement, ParameterBinding binding) Binds an object value to PreparedStatement's parameter.buildAttribute(String name, String typeName, int type, int size, int scale, boolean allowNulls) Creates and returns a DbAttribute based on supplied parameters (usually obtained from database meta data).protected voidInstalls appropriate ExtendedTypes as converters for passing values between JDBC and Java layers.createTable(DbEntity ent) Customizes table creating procedure for PostgreSQL.dropTableStatements(DbEntity table) Adds the CASCADE option to the DROP TABLE clause.Uses PostgresActionBuilder to create the right action.booleanReturns true.booleantypeSupportsLength(int type) Returns true if supplied type can have a length attribute as a part of column definitionMethods inherited from class org.apache.cayenne.dba.JdbcAdapter
createEJBQLTranslatorFactory, createFkConstraint, createQuotingStrategy, createTableAppendColumn, createTableAppendPKClause, createUniqueConstraint, externalTypesForJdbcType, findResource, getBatchTerminator, getEjbqlTranslatorFactory, getExtendedTypes, getJdbcEventLogger, getPkGenerator, getQuotingStrategy, getSelectTranslator, getSystemCatalogs, getType, initExtendedTypes, setEjbqlTranslatorFactory, setPkGenerator, setSupportsBatchUpdates, setSupportsGeneratedKeys, setSupportsUniqueConstraints, sizeAndPrecision, supportsBatchUpdates, supportsGeneratedKeys, supportsUniqueConstraints, tableTypeForTable, tableTypeForView, typeSupportsScale, unwrapMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.apache.cayenne.dba.DbAdapter
supportsGeneratedKeysForBatchInserts
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Field Details
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BYTEA
- See Also:
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Constructor Details
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PostgresAdapter
public PostgresAdapter(RuntimeProperties runtimeProperties, List<ExtendedType> defaultExtendedTypes, List<ExtendedType> userExtendedTypes, List<ExtendedTypeFactory> extendedTypeFactories, ResourceLocator resourceLocator, ValueObjectTypeRegistry valueObjectTypeRegistry)
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Method Details
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getSqlTreeProcessor
- Specified by:
getSqlTreeProcessorin interfaceDbAdapter- Overrides:
getSqlTreeProcessorin classJdbcAdapter- Returns:
SQLTreeProcessorthat can adjust SQL tree to specific database flavour- Since:
- 4.2
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getAction
Uses PostgresActionBuilder to create the right action.- Specified by:
getActionin interfaceDbAdapter- Overrides:
getActionin classJdbcAdapter- Since:
- 1.2
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configureExtendedTypes
Installs appropriate ExtendedTypes as converters for passing values between JDBC and Java layers.- Overrides:
configureExtendedTypesin classJdbcAdapter
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buildAttribute
public DbAttribute buildAttribute(String name, String typeName, int type, int size, int scale, boolean allowNulls) Description copied from interface:DbAdapterCreates and returns a DbAttribute based on supplied parameters (usually obtained from database meta data).- Specified by:
buildAttributein interfaceDbAdapter- Overrides:
buildAttributein classJdbcAdapter- Parameters:
name- database column nametypeName- database specific type name, may be used as a hint to determine the right JDBC type.type- JDBC column typesize- database column size (ignored if less than zero)scale- database column scale, i.e. the number of decimal digits (ignored if less than zero)allowNulls- database column nullable parameter
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bindParameter
public void bindParameter(PreparedStatement statement, ParameterBinding binding) throws SQLException, Exception Description copied from interface:DbAdapterBinds an object value to PreparedStatement's parameter.- Specified by:
bindParameterin interfaceDbAdapter- Overrides:
bindParameterin classJdbcAdapter- Throws:
SQLExceptionException
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createTable
Customizes table creating procedure for PostgreSQL. One difference with generic implementation is that "bytea" type has no explicit length unlike similar binary types in other databases.- Specified by:
createTablein interfaceDbAdapter- Overrides:
createTablein classJdbcAdapter- Since:
- 1.0.2
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typeSupportsLength
public boolean typeSupportsLength(int type) Description copied from class:JdbcAdapterReturns true if supplied type can have a length attribute as a part of column definition- Specified by:
typeSupportsLengthin interfaceDbAdapter- Overrides:
typeSupportsLengthin classJdbcAdapter
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dropTableStatements
Adds the CASCADE option to the DROP TABLE clause.- Specified by:
dropTableStatementsin interfaceDbAdapter- Overrides:
dropTableStatementsin classJdbcAdapter
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supportsCatalogsOnReverseEngineering
public boolean supportsCatalogsOnReverseEngineering()Description copied from class:JdbcAdapterReturns true.- Specified by:
supportsCatalogsOnReverseEngineeringin interfaceDbAdapter- Overrides:
supportsCatalogsOnReverseEngineeringin classJdbcAdapter
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getSystemSchemas
- Specified by:
getSystemSchemasin interfaceDbAdapter- Overrides:
getSystemSchemasin classJdbcAdapter- Returns:
- list of system schemas
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