In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "Add one or more delegator elements to the datasource object".

A block of code is set as follows:

<field-type-def type="currency-amount" sql-type="NUMERIC(18,2)"
java type="java.math.BigDecimal">
<validate method="isSignedDouble"/>
</field-type-def>
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
<field-type-def type="currency-amount" sql-type="NUMERIC(18,2)"
java type="java.math.BigDecimal">
<validate method="isSignedDouble"/>
</field-type-def>

Any command-line input or output is written as follows:

ant clean-install

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Use the WebTools Entity Reference - Interactive Version to see if the new view-entity was successfully created".