public class DBCaseExpr extends DBColumnExpr
There is no need to explicitly create instances of this class.
Instead use DBColumnExpr.when(DBCompareExpr, Object)
attributes, beanPropertyName, DBCOLATTR_TITLE, DBCOLATTR_TYPE, options
CTX_ALIAS, CTX_ALL, CTX_DEFAULT, CTX_FULLNAME, CTX_NAME, CTX_NOPARENTHESES, CTX_VALUE
Constructor and Description |
---|
DBCaseExpr(DBCompareExpr compExpr,
DBColumnExpr trueExpr,
DBColumnExpr elseExpr)
Constructs a DBCaseExpr
|
Modifier and Type | Method and Description |
---|---|
void |
addReferencedColumns(Set<DBColumn> list)
Internal function to obtain all DBColumnExpr-objects used by this expression.
|
void |
addSQL(StringBuilder sql,
long context)
Used to build the SQL command.
|
Element |
addXml(Element parent,
long flags)
Add a description of this column with relevant metadata
to the supplied parent XML Element.
|
DBDatabase |
getDatabase()
Returns the database object to which this object belongs to.
|
DataType |
getDataType()
Returns the data type of this column expression.
|
String |
getName()
Returns the column name for this column expression.
|
DBColumn |
getUpdateColumn()
Returns the underlying physical column which may be used for updates.
|
boolean |
isAggregate()
Indicates whether this function is an aggregate (sum, min, max, avg, ...) or not
|
abs, append, as, as, asc, avg, ceiling, cmp, coalesce, convertTo, convertTo, count, countDistinct, day, decode, decode, decode, decode, decode, decode, desc, divideBy, floor, getAttribute, getBeanPropertyName, getControlType, getExprFromPhrase, getExprFromPhrase, getOptions, getSourceColumn, getTitle, in, in, in, indexOf, indexOf, indexOf, is, isBetween, isGreaterThan, isLessOrEqual, isMoreOrEqual, isNot, isNotBetween, isSmallerThan, length, like, like, likeLower, likeUpper, lower, max, min, minus, minus, modulo, month, multiplyWith, notIn, notIn, 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
getObjectValue, getValueClass
public DBCaseExpr(DBCompareExpr compExpr, DBColumnExpr trueExpr, DBColumnExpr elseExpr)
compExpr
- the condition to be evaluatedtrueExpr
- the expression returned if the condition is trueelseExpr
- the expression returned if the condition is false (may be null)public DBDatabase getDatabase()
DBObject
getDatabase
in class DBObject
public DataType getDataType()
DBColumnExpr
getDataType
in interface ColumnExpr
getDataType
in class DBColumnExpr
DataType
public String getName()
DBColumnExpr
getName
in interface ColumnExpr
getName
in class DBColumnExpr
public DBColumn getUpdateColumn()
DBColumnExpr
getUpdateColumn
in class DBColumnExpr
public boolean isAggregate()
DBColumnExpr
isAggregate
in class DBColumnExpr
public void addReferencedColumns(Set<DBColumn> list)
DBExpr
addReferencedColumns
in class DBExpr
list
- list to which all used column expressions must be addedpublic void addSQL(StringBuilder sql, long context)
DBExpr
public Element addXml(Element parent, long flags)
DBColumnExpr
addXml
in class DBColumnExpr
parent
- the parent element to which to append the column descriptionflags
- currently not usedCopyright © 2008–2018 Apache Software Foundation. All rights reserved.