oracle.jbo.script

Class AbstractExprDef

java.lang.Object

oracle.jbo.script.AbstractExprDef

All Implemented Interfaces:

ExprDef

Direct Known Subclasses:

JIExprDef

@Exported
public abstract class AbstractExprDef
extends java.lang.Object
implements ExprDef

An abstract implementation of an ExprDef. The AbstractExprDef adapts a script text for use with the ADF script compiler/evaluator. Libraries that do not define a proper ADF ExprDef implementation may create a AbstractExprDef to use the ADF groovy compiler/evaluate. The AbstractExprDef provides default implementations of many of the ADF ExprDef APIs that may not be appropriate for more general purpose evaluation.

Nested Class Summary

Nested classes/interfaces inherited from interface oracle.jbo.script.ExprDef

ExprDef.META, ExprDef.SourceHintProperty

Nested classes/interfaces inherited from interface oracle.jbo.ExprDef

ExprDef.OverrideMode, ExprDef.Visibility

Field Summary

Fields inherited from interface oracle.jbo.script.ExprDef

BINDING, GROOVY_MIME_TYPE, JI_MIME_TYPE, mLogger, NASHORN_MIME_TYPE, UNKNOWN_FILE_NAME

Fields inherited from interface oracle.jbo.ExprDef

OVERRIDEMODE_PROPERTY, VISIBILITY_PROPERTY

Constructor Summary

Constructors

Constructor and Description
AbstractExprDef()

Method Summary

Modifier and Type	Method and Description
int	calculateOffset() The expression's "offset" within a CodeSource.
java.lang.Object	getCacheKey(java.lang.String exprStr) The key to be used for caching compiled expression instances.
java.util.Map<java.lang.String,byte[]>	getClassData(java.lang.String name)
ExprCodeSource	getCodeSource() Returns the code source that contains the code for this expression.
java.lang.String	getCodeSourceName() Returns the CodeSourceName for this expression.
abstract java.lang.String	getContentType() Concrete implementations need to provide a content type.
int	getDefScope()
java.lang.String	getExpressionClassName() Returns the name used for the expression class.
java.lang.String	getExpressionSource() The source string of the expression.
static java.lang.String	getExpressionSource(ExprDef exprDef)
java.lang.String	getExprIdentifier() A unique identfier for the expression.
java.lang.String	getFunctionName() Return the name of the script function that should be invoked when evalauting the expression definition.
ExprDef.OverrideMode	getOverrideMode() The override mode for the expression.
OwnerType	getOwnerType() Returns the type of object that owners the expression class.
java.lang.String	getPath() A dot separated path that may be used to lookup the ExprDef within the ExprDef's owning compnent.
java.lang.Object	getProperty(java.lang.String name)
java.lang.String	getScriptClassName(java.lang.String exprStr) Returns the name used for the expression class.
java.io.Reader	getScriptReader()
abstract java.lang.String	getScriptText() Concrete implementations need to provide a script text.
java.lang.String	getTriggerType() Return the trigger type.
ExprEval.TrustMode	getTrustMode() The trust mode for the expression.
ExprEval.TrustMode	getTrustMode(java.lang.String functionName)
ExprEval.TypeCheckedMode	getTypeCheckedMode() Returns whether the expresion should be type checked when type checking is enabled for the groovy compiler.
ExprDef.Visibility	getVisibility() The visibility of the expression.
boolean	hasReturn() If the expression has a return value.
boolean	isDynamicCodeSourceEnabled()
boolean	isOperationsExpression() If the expression defines operations.
void	storeClassData(java.lang.String name, byte[] classData)
boolean	supportsAnnotation() Indicates whether ADF can use an expression annotation to select the expression method for invocation.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractExprDef

public AbstractExprDef()

Method Detail

getExpressionSource

public java.lang.String getExpressionSource()

Description copied from interface: ExprDef

The source string of the expression.

Specified by:

getExpressionSource in interface ExprDef

calculateOffset

@Concealed
public int calculateOffset()

Description copied from interface: ExprDef

The expression's "offset" within a CodeSource. Exception handling may use the offset to adjust stack line numbers. For example, for triggers that are dynamically added to a CodeSource, the exception handling may use the offset so that the first line of the trigger is reported as line 1 in the stack. This is required if DT presents triggers as scripts while the RT compiles the triggers into functions.

getPath

@Concealed
public java.lang.String getPath()

Description copied from interface: ExprDef

A dot separated path that may be used to lookup the ExprDef within the ExprDef's owning compnent. See ComponentOperationsManager#findExprDef.

Specified by:

getPath in interface ExprDef

getTrustMode

@Concealed
public ExprEval.TrustMode getTrustMode()

Description copied from interface: ExprDef

The trust mode for the expression.

Specified by:

getTrustMode in interface ExprDef

getTrustMode

@Concealed
public ExprEval.TrustMode getTrustMode(java.lang.String functionName)

getOverrideMode

public ExprDef.OverrideMode getOverrideMode()

Description copied from interface: ExprDef

The override mode for the expression.

Specified by:

getOverrideMode in interface ExprDef

getVisibility

public ExprDef.Visibility getVisibility()

Description copied from interface: ExprDef

The visibility of the expression.

Specified by:

getVisibility in interface ExprDef

hasReturn

public boolean hasReturn()

Description copied from interface: ExprDef

If the expression has a return value.

Specified by:

hasReturn in interface ExprDef

getExprIdentifier

public java.lang.String getExprIdentifier()

Description copied from interface: ExprDef

A unique identfier for the expression.

Specified by:

getExprIdentifier in interface ExprDef

getCacheKey

public java.lang.Object getCacheKey(java.lang.String exprStr)

Description copied from interface: ExprDef

The key to be used for caching compiled expression instances.

Specified by:

getCacheKey in interface ExprDef

Returns:

a cacheKey. If null then the compiled expression will not be cached.

isOperationsExpression

public boolean isOperationsExpression()

Description copied from interface: ExprDef

If the expression defines operations.

Specified by:

isOperationsExpression in interface ExprDef

getScriptClassName

public java.lang.String getScriptClassName(java.lang.String exprStr)

Description copied from interface: ExprDef

Returns the name used for the expression class.

Specified by:

getScriptClassName in interface ExprDef

getExpressionClassName

public java.lang.String getExpressionClassName()

Description copied from interface: ExprDef

Returns the name used for the expression class.

Specified by:

getExpressionClassName in interface ExprDef

getTypeCheckedMode

public ExprEval.TypeCheckedMode getTypeCheckedMode()

Description copied from interface: ExprDef

Returns whether the expresion should be type checked when type checking is enabled for the groovy compiler.

Specified by:

getTypeCheckedMode in interface ExprDef

Returns:

ExprEval.TypeCheckedMode.always if the expr should always be type checked ExprEval.TypeCheckedMode.never if the expr should never be typ checked ExprEval.TypeCheckedMode.defer if type checking is dependent upon the application configuration

getOwnerType

public OwnerType getOwnerType()

Description copied from interface: ExprDef

Returns the type of object that owners the expression class.

Specified by:

getOwnerType in interface ExprDef

getCodeSource

public ExprCodeSource getCodeSource()

Description copied from interface: ExprDef

Returns the code source that contains the code for this expression.

getCodeSourceName

public java.lang.String getCodeSourceName()

Description copied from interface: ExprDef

Returns the CodeSourceName for this expression.

getTriggerType

public java.lang.String getTriggerType()

Description copied from interface: ExprDef

Return the trigger type.

Specified by:

getTriggerType in interface ExprDef

Returns:

null if this is not a trigger expression.

supportsAnnotation

public boolean supportsAnnotation()

Description copied from interface: ExprDef

Indicates whether ADF can use an expression annotation to select the expression method for invocation. This is required for some internal expression usages that are not uniquely identified by the annotation. In those cases the framework will use the more unique expression identifier to select the method invocation target.

Specified by:

supportsAnnotation in interface ExprDef

getProperty

public java.lang.Object getProperty(java.lang.String name)

Specified by:

getProperty in interface ExprDef

getScriptReader

public java.io.Reader getScriptReader()

getFunctionName

public java.lang.String getFunctionName()

Description copied from interface: ExprDef

Return the name of the script function that should be invoked when evalauting the expression definition.

Returns:

return null if the expression script should be evalauted.

getScriptText

public abstract java.lang.String getScriptText()

Concrete implementations need to provide a script text.

getContentType

public abstract java.lang.String getContentType()

Concrete implementations need to provide a content type.

getExpressionSource

public static java.lang.String getExpressionSource(ExprDef exprDef)

getDefScope

@Concealed
public int getDefScope()

getClassData

public java.util.Map<java.lang.String,byte[]> getClassData(java.lang.String name)

storeClassData

public void storeClassData(java.lang.String name,
                           byte[] classData)

isDynamicCodeSourceEnabled

public boolean isDynamicCodeSourceEnabled()