Package org.apache.empire.db.expr.column

Class DBConcatFuncExpr

java.lang.Object

org.apache.empire.db.DBObject

org.apache.empire.db.DBExpr

org.apache.empire.db.DBColumnExpr

org.apache.empire.db.expr.column.DBAbstractFuncExpr

org.apache.empire.db.expr.column.DBConcatFuncExpr

All Implemented Interfaces:

ColumnExpr, DBPreparable

public class DBConcatFuncExpr
extends DBAbstractFuncExpr

DBConcatExpression

Author:

doebele

Field Summary

Fields inherited from class org.apache.empire.db.expr.column.DBAbstractFuncExpr

dataType, expr, isAggregate, log

Fields inherited from class org.apache.empire.db.DBColumnExpr

attributes, beanPropertyName, options

Fields inherited from class org.apache.empire.db.DBExpr

CTX_ALIAS, CTX_ALL, CTX_DEFAULT, CTX_FULLNAME, CTX_NAME, CTX_NOPARENTHESIS, CTX_VALUE

Constructor Summary

Constructors

Constructor	Description
DBConcatFuncExpr(DBColumnExpr first, String separator, DBColumnExpr... others)	create concat expression
DBConcatFuncExpr(DBColumnExpr first, DBColumnExpr... others)	create concat expression

Method Summary

Modifier and Type	Method	Description
void	addSQL(DBSQLBuilder sql, long context)	Used to build the SQL command.
boolean	equals(Object other)	Returns true if other is equal to this expression
protected String	getFunctionName()	returns the name of the function
String	getName()	Returns the column name.
DBColumn	getUpdateColumn()	Returns the DBColunm object.

Methods inherited from class org.apache.empire.db.expr.column.DBAbstractFuncExpr

addReferencedColumns, addSQL, addXml, getDatabase, getDataType, getDbms, getEnumType, getRowSet, isAggregate, prepareParams

Methods inherited from class org.apache.empire.db.DBColumnExpr

abs, aggregate, append, as, as, asc, avg, ceiling, cmp, coalesce, concat, concat, contains, convertTo, convertTo, count, countDistinct, day, decode, decode, decode, decode, decode, decode, decodeEnum, decodeSort, desc, divideBy, floor, format, function, getAttribute, getAttribute, getBeanPropertyName, getControlType, getDefaultSortOrder, getExprFromPhrase, getExprFromPhrase, getIgnoreCaseExpr, getJavaType, getNumberType, getOptions, getSourceColumn, getTitle, in, in, in, indexOf, indexOf, indexOf, is, isBetween, isCaseSensitive, isGreaterThan, isLessOrEqual, isLiteralValue, isMoreOrEqual, isNot, isNotBetween, isSmallerThan, length, like, like, likeLower, likeUpper, lower, max, min, minus, minus, modulo, month, multiplyWith, notContains, notIn, notIn, notIn, notLike, nvl, on, parenthesis, plus, plus, prepend, qualified, replace, reverse, round, setAttribute, setBeanPropertyName, setControlType, setDefaultSortOrder, setOptions, setTitle, stringAgg, stringAgg, substring, substring, substring, substring, substring, substring, sum, toChar, toChar, toString, trim, trimLeft, trimRight, trunc, upper, when, year

Methods inherited from class org.apache.empire.db.DBObject

checkParamNull

Methods inherited from class java.lang.Object

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

Constructor Details

DBConcatFuncExpr

public DBConcatFuncExpr(DBColumnExpr first,
 String separator,
 DBColumnExpr... others)

create concat expression

Parameters:

first - the first expression

separator - the separator

others - the remaining expressions

DBConcatFuncExpr

public DBConcatFuncExpr(DBColumnExpr first,
 DBColumnExpr... others)

create concat expression

Parameters:

first - the first expression

others - the remaining expressions

Method Details

getName

public String getName()

Description copied from class: DBAbstractFuncExpr

Returns the column name.

Specified by:

getName in interface ColumnExpr

Overrides:

getName in class DBAbstractFuncExpr

Returns:

the column name

getFunctionName

protected String getFunctionName()

Description copied from class: DBAbstractFuncExpr

returns the name of the function

Specified by:

getFunctionName in class DBAbstractFuncExpr

Returns:

the function name

getUpdateColumn

public DBColumn getUpdateColumn()

Description copied from class: DBAbstractFuncExpr

Returns the DBColunm object.

Specified by:

getUpdateColumn in interface ColumnExpr

Overrides:

getUpdateColumn in class DBAbstractFuncExpr

Returns:

the DBColunm object

equals

public boolean equals(Object other)

Returns true if other is equal to this expression

Overrides:

equals in class DBAbstractFuncExpr

addSQL

public void addSQL(DBSQLBuilder sql,
 long context)

Description copied from class: DBExpr

Used to build the SQL command. SQL for this expression must be appended to StringBuilder.

Specified by:

addSQL in class DBExpr

Parameters:

sql - the string buffer used to build the sql command

context - context flag for this SQL-Command (see CTX_??? constants).