Package org.apache.groovy.ginq.dsl.expression

Class FromExpression

java.lang.Object

org.codehaus.groovy.ast.ASTNode

org.codehaus.groovy.ast.AnnotatedNode

org.codehaus.groovy.ast.expr.Expression

org.apache.groovy.ginq.dsl.expression.AbstractGinqExpression

org.apache.groovy.ginq.dsl.expression.DataSourceExpression

org.apache.groovy.ginq.dsl.expression.FromExpression

All Implemented Interfaces:

GroovydocHolder<AnnotatedNode>, DataSourceHolder, NodeMetaDataHandler

public class FromExpression
extends DataSourceExpression

Represents the from expression

Since:

4.0.0

Field Summary

Fields inherited from class org.apache.groovy.ginq.dsl.expression.DataSourceExpression

aliasExpr, dataSourceExpr

Fields inherited from class org.codehaus.groovy.ast.expr.Expression

EMPTY_ARRAY

Fields inherited from interface groovy.lang.groovydoc.GroovydocHolder

DOC_COMMENT

Constructor Summary

Constructors

Constructor	Description
FromExpression(Expression aliasExpr, Expression dataSourceExpr)	Creates a from clause.

Method Summary

Modifier and Type	Method	Description
<R> R	accept(GinqAstVisitor<R> visitor)	Accepts a visitor for this clause.
DataSourceExpression	getDataSourceExpression()	Returns this clause as its own data-source expression.
String	getText()	Returns the textual GINQ form of this clause.
void	setDataSourceExpression(DataSourceExpression dataSourceExpression)	Rejects replacing the from clause with another data source.
String	toString()	Returns the textual form of this clause.

Methods inherited from class org.apache.groovy.ginq.dsl.expression.DataSourceExpression

getAliasExpr, getDataSourceExpr, setDataSourceExpr

Methods inherited from class org.apache.groovy.ginq.dsl.expression.AbstractGinqExpression

transformExpression, visit

Methods inherited from class org.codehaus.groovy.ast.expr.Expression

getType, setType, transformExpressions, transformExpressions

Methods inherited from class org.codehaus.groovy.ast.AnnotatedNode

addAnnotation, addAnnotation, addAnnotations, getAnnotations, getAnnotations, getDeclaringClass, getGroovydoc, getInstance, hasNoRealSourcePosition, isSynthetic, setDeclaringClass, setHasNoRealSourcePosition, setSynthetic

Methods inherited from class org.codehaus.groovy.ast.ASTNode

copyNodeMetaData, getColumnNumber, getLastColumnNumber, getLastLineNumber, getLineNumber, getMetaDataMap, setColumnNumber, setLastColumnNumber, setLastLineNumber, setLineNumber, setMetaDataMap, setSourcePosition

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.codehaus.groovy.ast.NodeMetaDataHandler

copyNodeMetaData, getMetaDataMap, getNodeMetaData, getNodeMetaData, getNodeMetaData, newMetaDataMap, putNodeMetaData, removeNodeMetaData, setMetaDataMap, setNodeMetaData

Constructor Details

FromExpression

public FromExpression(Expression aliasExpr,
 Expression dataSourceExpr)

Creates a from clause.

Parameters:

aliasExpr - the alias expression

dataSourceExpr - the source expression

Method Details

accept

public <R> R accept(GinqAstVisitor<R> visitor)

Accepts a visitor for this clause.

Specified by:

accept in class AbstractGinqExpression

Type Parameters:

R - the visit result type

Parameters:

visitor - the visitor to accept

Returns:

the visit result

getDataSourceExpression

public DataSourceExpression getDataSourceExpression()

Returns this clause as its own data-source expression.

Returns:

this instance

setDataSourceExpression

public void setDataSourceExpression(DataSourceExpression dataSourceExpression)

Rejects replacing the from clause with another data source.

Parameters:

dataSourceExpression - the ignored replacement

getText

public String getText()

Returns the textual GINQ form of this clause.

Overrides:

getText in class ASTNode

Returns:

the clause text

toString

public String toString()

Returns the textual form of this clause.

Overrides:

toString in class Object

Returns:

the clause text