|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.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.DBConvertExpr
public class DBConvertExpr
This class is used to convert a value to a different data type. This function uses the DBDatabaseDriver.getConvertPhrase function to obtain a conversion template.
There is no need to explicitly create instances of this class.
Instead use DBColumnExpr.convertTo(DataType)
Field Summary |
---|
Fields inherited from class org.apache.empire.db.expr.column.DBAbstractFuncExpr |
---|
dataType, expr, isAggregate, updateColumn |
Fields inherited from class org.apache.empire.db.DBColumnExpr |
---|
attributes, beanPropertyName, DBCOLATTR_TITLE, DBCOLATTR_TYPE, options |
Fields inherited from class org.apache.empire.db.DBExpr |
---|
CTX_ALIAS, CTX_ALL, CTX_DEFAULT, CTX_FULLNAME, CTX_NAME, CTX_NOPARENTHESES, CTX_VALUE |
Constructor Summary | |
---|---|
DBConvertExpr(DBColumnExpr expr,
DataType dataType,
Object format)
Constructs a DBDecodeExpr |
Method Summary | |
---|---|
void |
addSQL(StringBuilder sql,
long context)
Used to build the SQL command. |
protected String |
getFunctionName()
returns the name of the function |
Methods inherited from class org.apache.empire.db.expr.column.DBAbstractFuncExpr |
---|
addReferencedColumns, addSQL, addXml, getDatabase, getDatabaseDriver, getDataType, getName, getUpdateColumn, isAggregate |
Methods inherited from class org.apache.empire.db.DBColumnExpr |
---|
abs, append, as, as, asc, avg, cmp, coalesce, convertTo, convertTo, count, countDistinct, day, decode, decode, decode, decode, decode, decode, desc, detectDataType, divideBy, getAttribute, getBeanPropertyName, getControlType, getExprFromPhrase, getExprFromPhrase, getOptions, getSourceColumn, getTitle, in, indexOf, indexOf, indexOf, is, isBetween, isGreaterThan, isLessOrEqual, isMoreOrEqual, isNot, isNotBetween, isSmallerThan, length, like, like, likeLower, likeUpper, lower, max, min, minus, minus, month, multiplyWith, notIn, notLike, nvl, parenthesis, plus, plus, replace, reverse, round, setAttribute, setBeanPropertyName, setControlType, setOptions, setTitle, substring, substring, substring, substring, substring, substring, sum, toChar, toChar, trim, trimLeft, trimRight, trunc, upper, when, year |
Methods inherited from class org.apache.empire.db.DBExpr |
---|
getObjectValue, getValueClass |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public DBConvertExpr(DBColumnExpr expr, DataType dataType, Object format)
expr
- the expression to be converteddataType
- the target data typeformat
- optional formatting informationMethod Detail |
---|
protected String getFunctionName()
DBAbstractFuncExpr
getFunctionName
in class DBAbstractFuncExpr
public void addSQL(StringBuilder sql, long context)
DBExpr
addSQL
in class DBExpr
sql
- the string buffer used to build the sql commandcontext
- context flag for this SQL-Command (see CTX_??? constants).
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |