org.nuxeo.ecm.core.storage.sql.jdbc.dialect

Class DialectDB2

java.lang.Object

org.nuxeo.ecm.core.storage.sql.jdbc.dialect.Dialect

org.nuxeo.ecm.core.storage.sql.jdbc.dialect.DialectDB2

public class DialectDB2
extends Dialect

DB2-specific dialect.

Nested Class Summary

Nested classes/interfaces inherited from class org.nuxeo.ecm.core.storage.sql.jdbc.dialect.Dialect

Dialect.ArraySubQuery, Dialect.DialectIdType, Dialect.FulltextMatchInfo, Dialect.JDBCInfo

Field Summary

Fields

Modifier and Type	Field and Description
protected String	fulltextParameters
protected String	usersSeparator

Fields inherited from class org.nuxeo.ecm.core.storage.sql.jdbc.dialect.Dialect

aclOptimizationsEnabled, ARRAY_SEP, clusteringEnabled, DEBUG_REAL_UUIDS, DEBUG_UUIDS, descending, DIALECT_CLASS, DIALECTS, fulltextDisabled, fulltextSearchDisabled, HEX_DIGITS, NULLS_LAST_ON_DESC_PROP, proxiesEnabled, readAclMaxSize, softDeleteEnabled, storesUpperCaseIdentifiers

Constructor Summary

Constructors

Constructor and Description
DialectDB2(DatabaseMetaData metadata, RepositoryDescriptor repositoryDescriptor)

Method Summary

Modifier and Type	Method and Description
String	addPagingClause(String sql, long limit, long offset) Returns the SQL query with a paging clause
List<String>	checkStoredProcedure(String procName, String procCreate, String ddlMode, Connection connection, JDBCLogger logger, Map<String,Serializable> properties) Checks if a given stored procedure exists and is identical to the passed creation SQL.
boolean	doesUpdateFromRepeatSelf() When doing an UPDATE t SET ...
String	getCascadeDropConstraintsString()
String	getCreateFulltextIndexSql(String indexName, String quotedIndexName, Table table, List<Column> columns, Model model) Gets a CREATE INDEX statement for a fulltext index.
String	getDialectFulltextQuery(String query) Get the dialect-specific version of a fulltext query.
Serializable	getFromResultSet(ResultSet rs, int index, Column column)
int	getFulltextIndexedColumns() Specifies what columns of the fulltext table have to be indexed.
Dialect.FulltextMatchInfo	getFulltextScoredMatchInfo(String fulltextQuery, String indexName, int nthMatch, Column mainColumn, Model model, Database database) Gets the SQL information needed to do a a fulltext match, either with a direct expression in the WHERE clause, or using a join with an additional table.
String	getInTreeSql(String idColumnName, String id) Gets the expression to use to check tree membership.
Dialect.JDBCInfo	getJDBCTypeAndString(ColumnType type) Gets the JDBC type and string from Nuxeo's type abstraction.
boolean	getMaterializeFulltextSyntheticColumn() Does the fulltext synthetic column have to be materialized.
protected int	getMaxNameSize()
String	getSecurityCheckSql(String idColumnName) Gets the expression to use to check security.
String	getSQLStatementsFilename() Gets the name of the file containing the SQL statements.
Map<String,Serializable>	getSQLStatementsProperties(Model model, Database database) Gets the properties to use with the SQL statements.
String	getTestSQLStatementsFilename()
String	getUsersSeparator()
String	getValidationQuery() A query that, when executed, will make at least a round-trip to the server to check that the connection is alive.
boolean	isAllowedConversion(int expected, int actual, String actualName, int actualSize) Check mismatches between expected and actual JDBC types read from database introspection.
boolean	isClusteringSupported() Checks that clustering is supported.
void	setToPreparedStatement(PreparedStatement ps, int index, Serializable value, Column column)
boolean	supportsPaging() Indicates if dialect supports paging
boolean	supportsReadAcl() Does the dialect support an optimized read security checks
boolean	supportsUpdateFrom() Does the dialect support UPDATE t SET ...

Methods inherited from class org.nuxeo.ecm.core.storage.sql.jdbc.dialect.Dialect

castIdToVarchar, closeQuote, createArrayOf, createDialect, getAddColumnString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getAncestorsIdsSql, getArrayElementString, getArrayIlikeSql, getArrayInSql, getArrayLikeSql, getArrayResult, getArraySubQuery, getBinaryFulltextSql, getBlobLengthFunction, getCalendarFromTimestamp, getCalendarFromTimestamp, getClobCast, getClusterGetInvalidations, getClusterInsertInvalidations, getColumnName, getConnectionSchema, getCreateIndexSql, getCustomColumnDefinition, getCustomPostCreateSqls, getDateCast, getDescending, getDumpStart, getDumpStop, getForeignKeyConstraintName, getFreeVariableSetterForType, getFromResultSetString, getFromResultSetTimestamp, getFulltextType, getGeneratedId, getIdentityGeneratedKeySql, getIdType, getIgnoredColumns, getIndexName, getLikeEscaping, getMatchMixinType, getMaximumArgsForIn, getMaxIndexNameSize, getNoColumnsInsertString, getNullColumnString, getPostCreateIdentityColumnSql, getPrepareUserReadAclsSql, getPrimaryKeyConstraintName, getReadAclsCheckSql, getRebuildReadAclsSql, getSoftDeleteCleanupSql, getSoftDeleteSql, getSQLForDump, getStartupSqls, getTableName, getTableTypeString, getTimestampFromCalendar, getTimestampFromCalendar, getUpdateReadAclsSql, hasIdentityGeneratedKey, hasNullEmptyString, isClusteringDeleteNeeded, isConcurrentUpdateException, isIdentityAlreadyPrimary, jdbcInfo, jdbcInfo, jdbcInfo, jdbcInfo, makeName, makeName, needsAliasForDerivedTable, needsNullsLastOnDescSort, needsOracleJoins, needsOrderByKeysAfterDistinct, needsOriginalColumnInGroupBy, needsPrepareUserReadAcls, openQuote, performAdditionalStatements, performPostOpenStatements, qualifyIndexName, setId, setIdLong, setToPreparedStatementString, setToPreparedStatementTimestamp, storesUpperCaseIdentifiers, supportsAncestorsTable, supportsArrayColumns, supportsArrays, supportsArraysReturnInsteadOfRows, supportsBatchUpdateCount, supportsCircularCascadeDeleteConstraints, supportsFastDescendants, supportsIfExistsAfterTableName, supportsIfExistsBeforeTableName, supportsIlike, supportsMultipleFulltextIndexes, supportsScroll, supportsSysNameArray, supportsWith, toBooleanValueString, toHexString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

fulltextParameters

protected final String fulltextParameters

usersSeparator

protected String usersSeparator

Constructor Detail

DialectDB2

public DialectDB2(DatabaseMetaData metadata,
                  RepositoryDescriptor repositoryDescriptor)

Method Detail

getCascadeDropConstraintsString

public String getCascadeDropConstraintsString()

Overrides:

getCascadeDropConstraintsString in class Dialect

getJDBCTypeAndString

public Dialect.JDBCInfo getJDBCTypeAndString(ColumnType type)

Description copied from class: Dialect

Gets the JDBC type and string from Nuxeo's type abstraction.

Specified by:

getJDBCTypeAndString in class Dialect

isAllowedConversion

public boolean isAllowedConversion(int expected,
                                   int actual,
                                   String actualName,
                                   int actualSize)

Description copied from class: Dialect

Check mismatches between expected and actual JDBC types read from database introspection.

Overrides:

isAllowedConversion in class Dialect

setToPreparedStatement

public void setToPreparedStatement(PreparedStatement ps,
                                   int index,
                                   Serializable value,
                                   Column column)
                            throws SQLException

Specified by:

setToPreparedStatement in class Dialect

Throws:

SQLException

getFromResultSet

public Serializable getFromResultSet(ResultSet rs,
                                     int index,
                                     Column column)
                              throws SQLException

Specified by:

getFromResultSet in class Dialect

Throws:

SQLException

getMaxNameSize

protected int getMaxNameSize()

Overrides:

getMaxNameSize in class Dialect

supportsReadAcl

public boolean supportsReadAcl()

Description copied from class: Dialect

Does the dialect support an optimized read security checks

Overrides:

supportsReadAcl in class Dialect

isClusteringSupported

public boolean isClusteringSupported()

Description copied from class: Dialect

Checks that clustering is supported.

Overrides:

isClusteringSupported in class Dialect

supportsPaging

public boolean supportsPaging()

Description copied from class: Dialect

Indicates if dialect supports paging

Overrides:

supportsPaging in class Dialect

Returns:

true if the dialect supports paging

addPagingClause

public String addPagingClause(String sql,
                              long limit,
                              long offset)

Description copied from class: Dialect

Returns the SQL query with a paging clause

Overrides:

addPagingClause in class Dialect

getSQLStatementsFilename

public String getSQLStatementsFilename()

Description copied from class: Dialect

Gets the name of the file containing the SQL statements.

Specified by:

getSQLStatementsFilename in class Dialect

getTestSQLStatementsFilename

public String getTestSQLStatementsFilename()

Specified by:

getTestSQLStatementsFilename in class Dialect

getSQLStatementsProperties

public Map<String,Serializable> getSQLStatementsProperties(Model model,
                                                           Database database)

Description copied from class: Dialect

Gets the properties to use with the SQL statements.

Specified by:

getSQLStatementsProperties in class Dialect

getValidationQuery

public String getValidationQuery()

Description copied from class: Dialect

A query that, when executed, will make at least a round-trip to the server to check that the connection is alive.

The query should throw an error if the connection is dead.

Overrides:

getValidationQuery in class Dialect

getUsersSeparator

public String getUsersSeparator()

getFulltextIndexedColumns

public int getFulltextIndexedColumns()

Description copied from class: Dialect

Specifies what columns of the fulltext table have to be indexed.

Specified by:

getFulltextIndexedColumns in class Dialect

Returns:

0 for none, 1 for the synthetic one, 2 for the individual ones

getMaterializeFulltextSyntheticColumn

public boolean getMaterializeFulltextSyntheticColumn()

Description copied from class: Dialect

Does the fulltext synthetic column have to be materialized.

Specified by:

getMaterializeFulltextSyntheticColumn in class Dialect

getCreateFulltextIndexSql

public String getCreateFulltextIndexSql(String indexName,
                                        String quotedIndexName,
                                        Table table,
                                        List<Column> columns,
                                        Model model)

Description copied from class: Dialect

Gets a CREATE INDEX statement for a fulltext index.

Specified by:

getCreateFulltextIndexSql in class Dialect

getDialectFulltextQuery

public String getDialectFulltextQuery(String query)

Description copied from class: Dialect

Get the dialect-specific version of a fulltext query.

Specified by:

getDialectFulltextQuery in class Dialect

Parameters:

query - the CMIS-syntax-based fulltext query string

Returns:

the dialect native fulltext query string

getFulltextScoredMatchInfo

public Dialect.FulltextMatchInfo getFulltextScoredMatchInfo(String fulltextQuery,
                                                            String indexName,
                                                            int nthMatch,
                                                            Column mainColumn,
                                                            Model model,
                                                            Database database)

Description copied from class: Dialect

Gets the SQL information needed to do a a fulltext match, either with a direct expression in the WHERE clause, or using a join with an additional table.

Specified by:

getFulltextScoredMatchInfo in class Dialect

supportsUpdateFrom

public boolean supportsUpdateFrom()

Description copied from class: Dialect

Does the dialect support UPDATE t SET ... FROM t, u WHERE ... ?

Specified by:

supportsUpdateFrom in class Dialect

doesUpdateFromRepeatSelf

public boolean doesUpdateFromRepeatSelf()

Description copied from class: Dialect

When doing an UPDATE t SET ... FROM t, u WHERE ..., does the FROM clause need to repeate the updated table (t).

Specified by:

doesUpdateFromRepeatSelf in class Dialect

getSecurityCheckSql

public String getSecurityCheckSql(String idColumnName)

Description copied from class: Dialect

Gets the expression to use to check security.

Specified by:

getSecurityCheckSql in class Dialect

Parameters:

idColumnName - the quoted name of the id column to use

Returns:

an SQL expression with two parameters (principals and permissions) that is true if access is allowed

getInTreeSql

public String getInTreeSql(String idColumnName,
                           String id)

Description copied from class: Dialect

Gets the expression to use to check tree membership.

Specified by:

getInTreeSql in class Dialect

Parameters:

idColumnName - the quoted name of the id column to use

id - the id, to check syntax with respect to specialized id column types

Returns:

an SQL expression with one parameters for the based id that is true if the document is under base id, or null if the query cannot match

checkStoredProcedure

public List<String> checkStoredProcedure(String procName,
                                         String procCreate,
                                         String ddlMode,
                                         Connection connection,
                                         JDBCLogger logger,
                                         Map<String,Serializable> properties)
                                  throws SQLException

Description copied from class: Dialect

Checks if a given stored procedure exists and is identical to the passed creation SQL.

There are 3 cases to deal with, and actions to perform:

• the stored procedure doesn't exist, and must be created (create the stored procedure);
• the stored procedure exists but is not up to date (drop the old stored procedure and re-create it);
• the stored procedure exists and is up to date (nothing to do).

When there is nothing to do, null is returned. Otherwise the returned value is a list of SQL statements to execute. Note that the SQL statements will include also INSERT statements to be executed to remember the creation SQL itself.

Specified by:

checkStoredProcedure in class Dialect

Parameters:

procName - the stored procedure name

procCreate - the creation SQL for the stored procedure

ddlMode - the DDL mode

connection - the connection

logger - the logger

properties - the statement execution properties

Returns:

a list of SQL statements

Throws:

SQLException