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Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.doc.user/tasks013.htm')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.doc.user/tasks013.htm | 89 |
1 files changed, 36 insertions, 53 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.doc.user/tasks013.htm b/jpa/plugins/org.eclipse.jpt.doc.user/tasks013.htm index b115ef0ff5..86f234e88b 100644 --- a/jpa/plugins/org.eclipse.jpt.doc.user/tasks013.htm +++ b/jpa/plugins/org.eclipse.jpt.doc.user/tasks013.htm @@ -2,7 +2,7 @@ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> -<!-- Run date = May 3, 2007 9:19:10 --> +<!-- Run date = May 9, 2007 10:03:43 --> <meta name="OAC_IGNORE_SKIP_NAV" content="true" /> <title>One-to-many mapping</title> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> @@ -29,7 +29,7 @@ </td> </tr> </table> -<p><a id="sthref136" name="sthref136"></a><a id="sthref137" name="sthref137"></a><a id="sthref138" name="sthref138"></a><a id="sthref139" name="sthref139"></a>Use a <span class="bold">One-to-Many Mapping</span> to define a relationship with one-to-many multiplicity.</p> +<p><a id="sthref139" name="sthref139"></a><a id="sthref140" name="sthref140"></a><a id="sthref141" name="sthref141"></a><a id="sthref142" name="sthref142"></a>Use a <span class="bold">One-to-Many Mapping</span> to define a relationship with one-to-many multiplicity.</p> <ol type="1" start="1"> <li> <p>In the <a href="ref_persistence_outline.htm#BABEGGFE">JPA Structure view</a>, select the field to map. The <a href="ref_persistence_map_view.htm#BABIFBAF">JPA Details view (for attributes)</a> displays the properties for the selected.</p> @@ -43,43 +43,20 @@ <table class="RuleInformal" title="This table lists the fields in the General tab of the Persistence Properties view for this mapping." summary="This table lists the fields in the General tab of the Persistence Properties view for this mapping." dir="ltr" border="1" width="100%" frame="border" rules="all" cellpadding="3" cellspacing="0"> <thead> <tr align="left" valign="top"> -<th align="left" valign="bottom" id="r1c1-t12">Property</th> -<th align="left" valign="bottom" id="r1c2-t12">Description</th> -<th align="left" valign="bottom" id="r1c3-t12">Default</th> +<th align="left" valign="bottom" id="r1c1-t13">Property</th> +<th align="left" valign="bottom" id="r1c2-t13">Description</th> +<th align="left" valign="bottom" id="r1c3-t13">Default</th> </tr> </thead> <tbody> <tr align="left" valign="top"> -<td align="left" id="r2c1-t12" headers="r1c1-t12">Target Entity</td> -<td align="left" headers="r2c1-t12 r1c2-t12">The entity to which this attribute is mapped.</td> -<td align="left" headers="r2c1-t12 r1c3-t12"><br /></td> +<td align="left" id="r2c1-t13" headers="r1c1-t13">Target Entity</td> +<td align="left" headers="r2c1-t13 r1c2-t13">The entity to which this attribute is mapped.</td> +<td align="left" headers="r2c1-t13 r1c3-t13"><br /></td> </tr> <tr align="left" valign="top"> -<td align="left" id="r3c1-t12" headers="r1c1-t12">Cascade Type</td> -<td align="left" headers="r3c1-t12 r1c2-t12">See <a href="ref_mapping_general.htm#CACJAIHB">"Cascade Type"</a> for details. -<ul> -<li type="disc"> -<p>Default</p> -</li> -<li type="disc"> -<p>All</p> -</li> -<li type="disc"> -<p>Persist</p> -</li> -<li type="disc"> -<p>Merge</p> -</li> -<li type="disc"> -<p>Remove</p> -</li> -</ul> -</td> -<td align="left" headers="r3c1-t12 r1c3-t12"><br /></td> -</tr> -<tr align="left" valign="top"> -<td align="left" id="r4c1-t12" headers="r1c1-t12">Fetch Type</td> -<td align="left" headers="r4c1-t12 r1c2-t12">Defines how data is loaded from the database. See <a href="ref_mapping_general.htm#CACGGGHB">"Fetch Type"</a> for details. +<td align="left" id="r3c1-t13" headers="r1c1-t13">Fetch Type</td> +<td align="left" headers="r3c1-t13 r1c2-t13">Defines how data is loaded from the database. See <a href="ref_mapping_general.htm#CACGGGHB">"Fetch Type"</a> for details. <ul> <li type="disc"> <p>Eager</p> @@ -89,54 +66,60 @@ </li> </ul> </td> -<td align="left" headers="r4c1-t12 r1c3-t12">Eager</td> +<td align="left" headers="r3c1-t13 r1c3-t13">Eager</td> </tr> <tr align="left" valign="top"> -<td align="left" id="r5c1-t12" headers="r1c1-t12">Mapped By</td> -<td align="left" headers="r5c1-t12 r1c2-t12">The database field that owns the relationship.</td> -<td align="left" headers="r5c1-t12 r1c3-t12"><br /></td> +<td align="left" id="r4c1-t13" headers="r1c1-t13">Mapped By</td> +<td align="left" headers="r4c1-t13 r1c2-t13">The database field that owns the relationship.</td> +<td align="left" headers="r4c1-t13 r1c3-t13"><br /></td> </tr> <tr align="left" valign="top"> -<td align="left" id="r6c1-t12" headers="r1c1-t12">Order By</td> -<td align="left" headers="r6c1-t12 r1c2-t12">Specify the default order for objects returned from a query. See <a href="ref_mapping_general.htm#CACDADIH">"Order By"</a> for details. +<td align="left" id="r5c1-t13" headers="r1c1-t13">Order By</td> +<td align="left" headers="r5c1-t13 r1c2-t13">Specify the default order for objects returned from a query. See <a href="ref_mapping_general.htm#CACDADIH">"Order By"</a> for details. <ul> <li type="disc"> +<p>No ordering</p> +</li> +<li type="disc"> <p>Primary key</p> </li> +<li type="disc"> +<p>Custom</p> +</li> </ul> </td> -<td align="left" headers="r6c1-t12 r1c3-t12">Primary key</td> +<td align="left" headers="r5c1-t13 r1c3-t13">No ordering</td> </tr> </tbody> </table> <br /></div> <!-- class="inftblruleinformal" --></li> <li> -<p>Use this table to complete the <a href="reference005.htm#CACBAEBC">Join Table Information</a> fields in the JPA Details view.</p> +<p>Use this table to complete the <a href="reference006.htm#CACBAEBC">Join Table Information</a> fields in the JPA Details view.</p> <div class="inftblruleinformal"> <table class="RuleInformal" title="This table lists the fields in the Join Table tab of the Persistence Properties view for this mapping." summary="This table lists the fields in the Join Table tab of the Persistence Properties view for this mapping." dir="ltr" border="1" width="100%" frame="border" rules="all" cellpadding="3" cellspacing="0"> <thead> <tr align="left" valign="top"> -<th align="left" valign="bottom" id="r1c1-t13">Property</th> -<th align="left" valign="bottom" id="r1c2-t13">Description</th> -<th align="left" valign="bottom" id="r1c3-t13">Default</th> +<th align="left" valign="bottom" id="r1c1-t14">Property</th> +<th align="left" valign="bottom" id="r1c2-t14">Description</th> +<th align="left" valign="bottom" id="r1c3-t14">Default</th> </tr> </thead> <tbody> <tr align="left" valign="top"> -<td align="left" id="r2c1-t13" headers="r1c1-t13">Name</td> -<td align="left" headers="r2c1-t13 r1c2-t13">Name of the join table</td> -<td align="left" headers="r2c1-t13 r1c3-t13">By default, the name is assumed to be the primary tables associated with the entities concatenated with an underscore.</td> +<td align="left" id="r2c1-t14" headers="r1c1-t14">Name</td> +<td align="left" headers="r2c1-t14 r1c2-t14">Name of the join table</td> +<td align="left" headers="r2c1-t14 r1c3-t14">By default, the name is assumed to be the primary tables associated with the entities concatenated with an underscore.</td> </tr> <tr align="left" valign="top"> -<td align="left" id="r3c1-t13" headers="r1c1-t13">Join Columns</td> -<td align="left" headers="r3c1-t13 r1c2-t13">Specify two or more join columns (that is, a primary key).</td> -<td align="left" headers="r3c1-t13 r1c3-t13"><br /></td> +<td align="left" id="r3c1-t14" headers="r1c1-t14">Join Columns</td> +<td align="left" headers="r3c1-t14 r1c2-t14">Specify two or more join columns (that is, a primary key).</td> +<td align="left" headers="r3c1-t14 r1c3-t14"><br /></td> </tr> <tr align="left" valign="top"> -<td align="left" id="r4c1-t13" headers="r1c1-t13">Inverse Join Columns</td> -<td align="left" headers="r4c1-t13 r1c2-t13">The join column on the owned (or inverse) side of the association: the owned entity's primary key column.</td> -<td align="left" headers="r4c1-t13 r1c3-t13"><br /></td> +<td align="left" id="r4c1-t14" headers="r1c1-t14">Inverse Join Columns</td> +<td align="left" headers="r4c1-t14 r1c2-t14">The join column on the owned (or inverse) side of the association: the owned entity's primary key column.</td> +<td align="left" headers="r4c1-t14 r1c3-t14"><br /></td> </tr> </tbody> </table> |