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<h2 title="Class OffsetBasedJavaCoreInputBuffer" class="title">Class OffsetBasedJavaCoreInputBuffer</h2>
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<pre>public abstract class <span class="typeNameLabel">OffsetBasedJavaCoreInputBuffer</span>
extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a>
implements <a href="IInputBuffer.html" title="interface in com.ibm.dtfj.javacore.parser.framework.input">IInputBuffer</a></pre>
<div class="block">Input buffer that computes character offset from disk.</div>
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<td class="colFirst"><code>protected static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_LENGTH">DEFAULT_LENGTH</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>protected <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/StringBuffer.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">StringBuffer</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fBuffer">fBuffer</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>protected int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fOffset">fOffset</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>protected static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#START_OFFSET">START_OFFSET</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">OffsetBasedJavaCoreInputBuffer</a></span>()</code></th>
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<td class="colFirst"><code>char</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#charAt(int)">charAt</a></span>&#8203;(int&nbsp;i)</code></th>
<td class="colLast">
<div class="block">Retrieves a character at a given position.</div>
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<td class="colFirst"><code>abstract void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th>
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<div class="block">Closes the java.io.Reader or input stream associated with this
buffered reader.</div>
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<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#endReached()">endReached</a></span>()</code></th>
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<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isStreamEnd()">isStreamEnd</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#length()">length</a></span>()</code></th>
<td class="colLast">
<div class="block">NOTE That the length of the buffer may vary during character consumption, so it cannot be assumed
to be fixed all the time.</div>
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<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#markStreamEnd(boolean)">markStreamEnd</a></span>&#8203;(boolean&nbsp;mark)</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#updateOffset(int)">updateOffset</a></span>&#8203;(int&nbsp;length)</code></th>
<td class="colLast">&nbsp;</td>
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<h3>Methods declared in class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink" target="_blank">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink" target="_blank">wait</a></code></li>
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<h3>Methods declared in interface&nbsp;com.ibm.dtfj.javacore.parser.framework.input.<a href="IInputBuffer.html" title="interface in com.ibm.dtfj.javacore.parser.framework.input">IInputBuffer</a></h3>
<code><a href="IInputBuffer.html#consume(int)">consume</a>, <a href="IInputBuffer.html#nextLine()">nextLine</a></code></li>
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<h4>fOffset</h4>
<pre>protected&nbsp;int fOffset</pre>
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<h4>fBuffer</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/StringBuffer.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">StringBuffer</a> fBuffer</pre>
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<h4>DEFAULT_LENGTH</h4>
<pre>protected static final&nbsp;int DEFAULT_LENGTH</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../../constant-values.html#com.ibm.dtfj.javacore.parser.framework.input.OffsetBasedJavaCoreInputBuffer.DEFAULT_LENGTH">Constant Field Values</a></dd>
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<h4>START_OFFSET</h4>
<pre>protected static final&nbsp;int START_OFFSET</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../../constant-values.html#com.ibm.dtfj.javacore.parser.framework.input.OffsetBasedJavaCoreInputBuffer.START_OFFSET">Constant Field Values</a></dd>
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<h4>OffsetBasedJavaCoreInputBuffer</h4>
<pre>public&nbsp;OffsetBasedJavaCoreInputBuffer()</pre>
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<h4>markStreamEnd</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;markStreamEnd&#8203;(boolean&nbsp;mark)</pre>
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<h4>isStreamEnd</h4>
<pre class="methodSignature">protected&nbsp;boolean&nbsp;isStreamEnd()</pre>
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<h4>endReached</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;endReached()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="IInputBuffer.html#endReached()">endReached</a></code>&nbsp;in interface&nbsp;<code><a href="IInputBuffer.html" title="interface in com.ibm.dtfj.javacore.parser.framework.input">IInputBuffer</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>determines if everything has been consumed from the reader stream.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="IInputBuffer.html#endReached()"><code>IInputBuffer.endReached()</code></a></dd>
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<h4>length</h4>
<pre class="methodSignature">public&nbsp;int&nbsp;length()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="IInputBuffer.html#length()">IInputBuffer</a></code></span></div>
<div class="block">NOTE That the length of the buffer may vary during character consumption, so it cannot be assumed
to be fixed all the time.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="IInputBuffer.html#length()">length</a></code>&nbsp;in interface&nbsp;<code><a href="IInputBuffer.html" title="interface in com.ibm.dtfj.javacore.parser.framework.input">IInputBuffer</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>buffer length</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="IInputBuffer.html#length()"><code>IInputBuffer.length()</code></a></dd>
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<h4>charAt</h4>
<pre class="methodSignature">public&nbsp;char&nbsp;charAt&#8203;(int&nbsp;i)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="IInputBuffer.html#charAt(int)">IInputBuffer</a></code></span></div>
<div class="block">Retrieves a character at a given position. No consumption occurs.
Typically used by an external scanner to determine if a sequence of characters in the buffer
matches a desired pattern. If so, the pattern is consumed by a consume method.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="IInputBuffer.html#charAt(int)">charAt</a></code>&nbsp;in interface&nbsp;<code><a href="IInputBuffer.html" title="interface in com.ibm.dtfj.javacore.parser.framework.input">IInputBuffer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>buffer</code> - index where character is located</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>character at specified index</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="IInputBuffer.html#charAt(int)"><code>IInputBuffer.charAt(int)</code></a></dd>
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<h4>updateOffset</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;updateOffset&#8203;(int&nbsp;length)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>length</code> - to add to current offset</dd>
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<h4>close</h4>
<pre class="methodSignature">public abstract&nbsp;void&nbsp;close()
throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/IOException.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">IOException</a></pre>
<div class="block">Closes the java.io.Reader or input stream associated with this
buffered reader.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="IInputBuffer.html#close()">close</a></code>&nbsp;in interface&nbsp;<code><a href="IInputBuffer.html" title="interface in com.ibm.dtfj.javacore.parser.framework.input">IInputBuffer</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/IOException.html?is-external=true" title="class or interface in java.io" class="externalLink" target="_blank">IOException</a></code> - if error encountered while closing.</dd>
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