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java.lang.Objectorg.eclipse.datatools.connectivity.oda.spec.result.AggregateExpression
public abstract class AggregateExpression
The abstract base class for all ODA aggregate expressions.
An expression may be validated by an IValidator
implemented
by an extension of the org.eclipse.datatools.connectivity.oda.dynamicResultSet extension point.
Method Summary | |
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AggregateExpression |
add(ExpressionVariable inputSourceVar)
Appends the specified input source variable to this. |
java.lang.String |
getAlias()
Gets the alias of this aggregate expression instance. |
java.lang.String |
getName()
Gets the name of this expression type. |
java.lang.String |
getQualifiedId()
Returns the qualified id of this expression type. |
java.util.List<ExpressionVariable> |
getVariables()
Returns the input source variables. |
boolean |
ignoresDuplicateValues()
Indicates whether this aggregate should ignore duplicate input values of its input source variable(s). |
boolean |
ignoresNullValues()
Indicates whether this aggregate should ignore duplicate null values of its input source variable(s). |
void |
setAlias(java.lang.String alias)
Specifies the alias. |
void |
setIgnoreDuplicateValues(boolean ignoresDups)
Specifies whether this aggregate to ignore duplicate values of its input source variable(s). |
void |
setIgnoreNullValues(boolean ignoresNull)
Specifies whether this aggregate should ignore duplicate null values of its input source variable(s). |
void |
setVariables(java.util.List<ExpressionVariable> variables)
Sets an ordered list of input source variables. |
java.lang.String |
toString()
|
void |
validate()
Validates this expression. |
void |
validate(ValidationContext context)
Validates this expression in the specified context. |
abstract void |
validateSyntax(ValidationContext context)
Performs syntactic validation of this expression in the specified context. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Method Detail |
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public AggregateExpression add(ExpressionVariable inputSourceVar)
inputSourceVar
- an ExpressionVariable
that identifies the source of input values
to apply in the aggregate
public java.util.List<ExpressionVariable> getVariables()
public void setVariables(java.util.List<ExpressionVariable> variables)
variables
- the list of variables to set; may be an empty listpublic java.lang.String getQualifiedId()
public java.lang.String getName()
public java.lang.String getAlias()
public void setAlias(java.lang.String alias)
alias
- the alias to setpublic boolean ignoresDuplicateValues()
public void setIgnoreDuplicateValues(boolean ignoresDups)
ignoresDups
- true to ignore; false otherwisepublic boolean ignoresNullValues()
public void setIgnoreNullValues(boolean ignoresNull)
ignoresNull
- true to ignore; false otherwisepublic void validate() throws OdaException
OdaException
public void validate(ValidationContext context) throws OdaException
context
- context for validation; may be null which would limit the scope of validation
OdaException
- if validation failed. The concrete reason is
defined by the subclass implementing this method.public abstract void validateSyntax(ValidationContext context) throws OdaException
context
- context for validation; may be null which would limit the scope of validation
OdaException
- if validation failed. The concrete cause is
defined by the subclass implementing this method.public java.lang.String toString()
toString
in class java.lang.Object
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