ScriptSessionImpl (tapestry

java.lang.Object
- org.apache.tapestry.script.ScriptSessionImpl

All Implemented Interfaces:

IScriptProcessor, ScriptSession
```
public class ScriptSessionImpl
extends java.lang.Object
implements ScriptSession
```
The result of executing a script, the session is used during the parsing process as well. Following IScript.execute(org.apache.tapestry.IRequestCycle, org.apache.tapestry.IScriptProcessor, java.util.Map), the session provides access to output symbols as well as the body and initialization blocks created by the script tokens.

Since:

0.2.9

Author:

Howard Lewis Ship

Constructor Summary

Constructors
Constructor and Description
`ScriptSessionImpl(org.apache.hivemind.Resource scriptTemplateResource, IRequestCycle cycle, IScriptProcessor processor, ExpressionEvaluator evaluator, ValueConverter valueConverter, java.util.Map symbols)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addBodyScript(java.lang.String script)` Adds scripting code to the main body.
`void`	`addExternalScript(org.apache.hivemind.Resource resource)` Adds an external script.
`void`	`addInitializationScript(java.lang.String script)` Adds initialization script.
`java.lang.Object`	`evaluate(java.lang.String expression)` Evaluates an OGNL expression, where the root object for the expression is the `symbols map`.
`java.lang.Object`	`evaluate(java.lang.String expression, java.lang.Class desiredType)` Evaluates an expression and coerces the result to a particlar type.
`IRequestCycle`	`getRequestCycle()` Returns the current request cycle.
`org.apache.hivemind.Resource`	`getScriptTemplateResource()` Returns the resource for the script template.
`java.util.Map`	`getSymbols()` Returns the symbols (which may be created or updated during the execution of the script template).
`java.lang.String`	`getUniqueString(java.lang.String baseValue)` Ensures that the given string is unique.
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - ScriptSessionImpl
```
public ScriptSessionImpl(org.apache.hivemind.Resource scriptTemplateResource,
                 IRequestCycle cycle,
                 IScriptProcessor processor,
                 ExpressionEvaluator evaluator,
                 ValueConverter valueConverter,
                 java.util.Map symbols)
```
- Method Detail
  - evaluate
```
public java.lang.Object evaluate(java.lang.String expression)
```
    Description copied from interface: ScriptSession
    
    Evaluates an OGNL expression, where the root object for the expression is the symbols map.
    
    Specified by:
    
    evaluate in interface ScriptSession
  - evaluate
```
public java.lang.Object evaluate(java.lang.String expression,
                        java.lang.Class desiredType)
```
    Description copied from interface: ScriptSession
    
    Evaluates an expression and coerces the result to a particlar type.
    
    Specified by:
    
    evaluate in interface ScriptSession
    
    See Also:
    ValueConverter
  - getScriptTemplateResource
```
public org.apache.hivemind.Resource getScriptTemplateResource()
```
    Description copied from interface: ScriptSession
    
    Returns the resource for the script template.
    
    Specified by:
    
    getScriptTemplateResource in interface ScriptSession
  - getSymbols
```
public java.util.Map getSymbols()
```
    Description copied from interface: ScriptSession
    
    Returns the symbols (which may be created or updated during the execution of the script template).
    
    Specified by:
    
    getSymbols in interface ScriptSession
  - getRequestCycle
```
public IRequestCycle getRequestCycle()
```
    Description copied from interface: ScriptSession
    
    Returns the current request cycle.
    
    Specified by:
    
    getRequestCycle in interface ScriptSession
  - addBodyScript
```
public void addBodyScript(java.lang.String script)
```
    Description copied from interface: IScriptProcessor
    
    Adds scripting code to the main body. During the render, multiple scripts may render multiple bodies; all are concatinated together to form a single block. The Body component will write the body script contents just inside the <body> tag.
    
    Specified by:
    
    addBodyScript in interface IScriptProcessor
  - addExternalScript
```
public void addExternalScript(org.apache.hivemind.Resource resource)
```
    Description copied from interface: IScriptProcessor
    
    Adds an external script. The processor is expected to ensure that external scripts are only loaded a single time per page.
    
    Specified by:
    
    addExternalScript in interface IScriptProcessor
  - addInitializationScript
```
public void addInitializationScript(java.lang.String script)
```
    Description copied from interface: IScriptProcessor
    
    Adds initialization script. Initialization script is executed once, when the containing page loads. Initialization script content is written only after all HTML content that could be referenced from the script (in effect, just before the </body> tag).
    Specified by: addInitializationScript in interface IScriptProcessor
  getUniqueString public java.lang.String getUniqueString(java.lang.String baseValue) Description copied from interface: IScriptProcessor Ensures that the given string is unique. The string is either returned unchanged, or a suffix is appended to ensure uniqueness. Specified by: getUniqueString in interface IScriptProcessor toString public java.lang.String toString() Overrides: toString in class java.lang.Object

Class ScriptSessionImpl

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ScriptSessionImpl

Method Detail

evaluate

evaluate

getScriptTemplateResource

getSymbols

getRequestCycle

addBodyScript

addExternalScript

addInitializationScript

getUniqueString

toString