Package org.dashbuilder.dataprovider.sql.dialect

Class PostgresDialect

java.lang.Object

org.dashbuilder.dataprovider.sql.dialect.DefaultDialect

org.dashbuilder.dataprovider.sql.dialect.PostgresDialect

All Implemented Interfaces:

Dialect

public class PostgresDialect
extends DefaultDialect

Field Summary

Fields

Modifier and Type	Field	Description
static String	PATTERN_DAY
static String	PATTERN_HOUR
static String	PATTERN_MINUTE
static String	PATTERN_MONTH
static String	PATTERN_SECOND
static String	PATTERN_YEAR

Constructor Summary

Constructors

Constructor	Description
PostgresDialect()

Method Summary

Modifier and Type	Method	Description
boolean	allowAliasInStatements()
String	getAliasForColumnSQL(String alias)
String	getAliasForStatementSQL(String alias)
String	getDynamicDateColumnSQL(DynamicDateColumn column)	The text conversion of a date column is very DB specific.

Methods inherited from class org.dashbuilder.dataprovider.sql.dialect.DefaultDialect

_getLogicalExprConditionSQL, areEquals, convertToDate, convertToDouble, convertToString, getAliasStatement, getAndExprConditionSQL, getBetweenConditionSQL, getColumnCastSQL, getColumnFunctionSQL, getColumnNameQuotedSQL, getColumnNameSQL, getColumnSQL, getColumnTypeSQL, getConcatFunctionSQL, getConcatFunctionSQL, getConditionSQL, getCoreConditionSQL, getCountQuerySQL, getDateParameterSQL, getDatePartFunctionSQL, getDeleteStatement, getExcludedColumns, getFixedDateColumnSQL, getFromSQL, getFromStatement, getFunctionColumnSQL, getGreaterOrEqualsConditionSQL, getGreaterThanConditionSQL, getGroupBySQL, getGroupByStatement, getInConditionSQL, getInsertStatement, getIsEqualsToConditionSQL, getIsNullConditionSQL, getLikeToConditionSQL, getLogicalConditionSQL, getLowerFunctionSQL, getLowerOrEqualsConditionSQL, getLowerThanConditionSQL, getNotEqualsToConditionSQL, getNotExprConditionSQL, getNotInConditionSQL, getNotNullConditionSQL, getNumberParameterSQL, getOffsetLimitSQL, getOrderBySQL, getOrderByStatement, getOrExprConditionSQL, getParameterSQL, getSchemaNameSQL, getSelectSQL, getSelectStatement, getSimpleColumnSQL, getSortColumnSQL, getSortOrderSQL, getSQL, getSQL, getSQL, getSQL, getStringParameterSQL, getTableNameSQL, getTableSQL, getWhereSQL, getWhereSQL, getWhereStatement, getWhereStatement, invokeMethod, toChar

Methods inherited from class java.lang.Object

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

Field Detail

PATTERN_YEAR

public static final String PATTERN_YEAR

See Also:

Constant Field Values

PATTERN_MONTH

public static final String PATTERN_MONTH

See Also:

Constant Field Values

PATTERN_DAY

public static final String PATTERN_DAY

See Also:

Constant Field Values

PATTERN_HOUR

public static final String PATTERN_HOUR

See Also:

Constant Field Values

PATTERN_MINUTE

public static final String PATTERN_MINUTE

See Also:

Constant Field Values

PATTERN_SECOND

public static final String PATTERN_SECOND

See Also:

Constant Field Values

Constructor Detail

PostgresDialect

public PostgresDialect()

Method Detail

allowAliasInStatements

public boolean allowAliasInStatements()

Overrides:

allowAliasInStatements in class DefaultDialect

getAliasForColumnSQL

public String getAliasForColumnSQL(String alias)

Specified by:

getAliasForColumnSQL in interface Dialect

Overrides:

getAliasForColumnSQL in class DefaultDialect

getAliasForStatementSQL

public String getAliasForStatementSQL(String alias)

Specified by:

getAliasForStatementSQL in interface Dialect

Overrides:

getAliasForStatementSQL in class DefaultDialect

getDynamicDateColumnSQL

public String getDynamicDateColumnSQL(DynamicDateColumn column)

Description copied from class: DefaultDialect

The text conversion of a date column is very DB specific. A mechanism combining concat and extract functions is used by default. Depending on the DB dialect a more polished approach can be used. For instance,

• In Oracle and Postgres the 'to_char' function is used.
• In Mysql, 'date_format'
• In H2, the 'to_char' function is not used as it's only available since version 1.3.175 and we do need to support older versions.

Specified by:

getDynamicDateColumnSQL in interface Dialect

Overrides:

getDynamicDateColumnSQL in class DefaultDialect