oracle.odi.mapping.generation

Class StringExpression

java.lang.Object

oracle.odi.mapping.generation.AbstractSyntaxTree

oracle.odi.mapping.generation.Expression

oracle.odi.mapping.generation.StringExpression

All Implemented Interfaces:

ISelectItem

Direct Known Subclasses:

StringConstant

public class StringExpression
extends Expression

A class representing an expression that is a text string.

Nested Class Summary

Nested classes/interfaces inherited from class oracle.odi.mapping.generation.AbstractSyntaxTree

AbstractSyntaxTree.LogCounter

Field Summary

Fields inherited from class oracle.odi.mapping.generation.Expression

JAVA_LOGGER

Method Summary

Modifier and Type	Method and Description
ArrayExpression	getArrayExpression() Convenience method to cast this object to an ArrayExpression, if it is an instance of ArrayExpression.
java.util.List	getChildren() Get the list of child objects owned by this substitution API object.
CorrelatedQuery	getCorrelatedQuery() Convenience method to cast this object to a CorrelatedQuery object, if it is an instance of CorrelatedQuery.
java.util.List	getExpressions() Get a list of expressions owned by this substitution API object.
SqlQuery	getQuery() Gets the SqlQuery object that owns this expression.
java.util.List	getSourceAttributes() Get a list of attributes that act as sources for this expression.
java.util.List	getSourceExpressions() Get a list of expression objects that act as a source for this expression.
StringExpression	getStringExpression() Convenience method to cast this object to a StringExpression object, if it is an instance of StringExpression.
java.util.Map	getTemplateSubstitutionMap() Get a hash map containing built-in template substitution variable names as the hash key, and the substitution variable value as values.
java.lang.String	getText() Gets the text of this string expression object.
boolean	isSimpleExpression() Return true if the expression is a simple reference to exactly one referenced source object or attribute, with no function calls or operators.
StringExpression	removeColumnPrefix() This is used for natural joins only.
java.lang.String	toString() Return a string representation of this string expression.

Methods inherited from class oracle.odi.mapping.generation.Expression

equals, getAccompanyingExpressions, getDefaultValueTemplate, getMapAttribute, getMappingObject, getMaxColumnLength, getRefAttributeWithPath, getRefObject, getRefPath, getTargetColumnName, getTemplate, getType, hasCorrelatedSubquery, hashCode, hasWindowFunction, isAggregation, isAggregation, isPassive

Methods inherited from class oracle.odi.mapping.generation.AbstractSyntaxTree

getCodeGenerationTemplate, getCodeGenerationTemplateName, getCustomTemplate, getKMName, getLeafLevelChildren, getMapPhysicalNode, getOrder, getParentAST, getParentOfType, getPropertyValue, getSourceLanguage, getSourceLocation, getSourceTechnology, getSourceText, getTargetLanguage, getTargetLocation, getTargetTechnology, getTargetText, hasCustomTemplate, hasSourceAndTargetText, isLeafLevelNode, isPushFromSource

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

isSimpleExpression

public boolean isSimpleExpression()

Description copied from class: Expression

Return true if the expression is a simple reference to exactly one referenced source object or attribute, with no function calls or operators. So for example, the expression "EMP.EMPNO" is simple. But expressions like "SUM(EMP.SAL)" or "EMP.SAL + EMP.BONUS" are not simple.

Specified by:

isSimpleExpression in class Expression

Returns:

True if this is a simple expression.

getText

public java.lang.String getText()

Gets the text of this string expression object.

Specified by:

getText in class Expression

Returns:

The expression text.

toString

public java.lang.String toString()

Return a string representation of this string expression.

Overrides:

toString in class java.lang.Object

removeColumnPrefix

public StringExpression removeColumnPrefix()

This is used for natural joins only. This will create a new StringExpression and remove the prefixes for each. e.g. EMP.EMPNO -> EMPNO.

Returns:

The new string expression.

getChildren

public java.util.List getChildren()

Description copied from class: AbstractSyntaxTree

Get the list of child objects owned by this substitution API object.

Specified by:

getChildren in class AbstractSyntaxTree

Returns:

The list of child objects.

getTemplateSubstitutionMap

public java.util.Map getTemplateSubstitutionMap()

Description copied from class: AbstractSyntaxTree

Get a hash map containing built-in template substitution variable names as the hash key, and the substitution variable value as values.

Specified by:

getTemplateSubstitutionMap in class AbstractSyntaxTree

Returns:

The built-in template substitution hash map.

getExpressions

public java.util.List getExpressions()

Description copied from class: AbstractSyntaxTree

Get a list of expressions owned by this substitution API object.

Specified by:

getExpressions in class AbstractSyntaxTree

Returns:

The list of expressions.

getQuery

public SqlQuery getQuery()

Gets the SqlQuery object that owns this expression.

getSourceAttributes

public java.util.List getSourceAttributes()

Description copied from interface: ISelectItem

Get a list of attributes that act as sources for this expression.

getSourceExpressions

public java.util.List getSourceExpressions()

Description copied from interface: ISelectItem

Get a list of expression objects that act as a source for this expression.

getArrayExpression

public ArrayExpression getArrayExpression()

Description copied from interface: ISelectItem

Convenience method to cast this object to an ArrayExpression, if it is an instance of ArrayExpression.

Returns:

The ArrayExpression if this is an ArrayExpression, else null.

getCorrelatedQuery

public CorrelatedQuery getCorrelatedQuery()

Description copied from interface: ISelectItem

Convenience method to cast this object to a CorrelatedQuery object, if it is an instance of CorrelatedQuery.

Returns:

The CorrelatedQuery object if this is a CorrelatedQuery, else null.

getStringExpression

public StringExpression getStringExpression()

Description copied from interface: ISelectItem

Convenience method to cast this object to a StringExpression object, if it is an instance of StringExpression.

Returns:

The StringExpression object if this is a StringExpression, else null.